The aroma of roasted peppers filled my kitchen, instantly transporting me to a cozy family gathering where comfort food reigned supreme. Today, I’m excited to share my Vegetarian Stuffed Pepper Casserole Recipe, a delightful twist on the classic dish that’s perfect for those busy weeknights when a comforting meal is essential but time is tight. Bursting with vibrant flavors and satisfying textures, this one-pan wonder not only simplifies your cooking routine but also packs in plant-based goodness without compromising on taste. With minimal prep and clean-up, you can enjoy a hearty dish that caters to the whole family while leaving room for your creativity. Are you ready to dig into a bowl of this colorful, nourishing casserole? Let’s get cooking!

Why is this casserole a must-try?

Easy Meal Prep: This Vegetarian Stuffed Pepper Casserole is a one-pan wonder, meaning you can spend less time on clean-up and more time enjoying your meal.

Packed with Flavor: The combination of bell peppers, spices, and cheese creates a savory explosion that’s impossible to resist.

Customizable to Your Taste: Whether you prefer extra veggies or a specific type of cheese, you can easily adapt this recipe to suit your tastes.

Perfect for Leftovers: Make-ahead and refrigerator-friendly, this casserole holds up beautifully in the fridge, making it an ideal choice for meal prepping or quick weeknight dinners.

Ultimate Comfort Food: As comforting as a warm hug, this dish brings together all the hearty flavors and textures you love from traditional stuffed peppers! If you’re looking for more delicious and easy recipes, check out this Cheesy Sausage Casserole or the Tuna Noodle Casserole for a twist on comfort food!

Vegetarian Stuffed Pepper Casserole Ingredients

To make this satisfying dish, you’ll need these essential ingredients:

For the Casserole

  • Bell Peppers – The star ingredient that brings color and flavor; try zucchini for a unique twist.
  • Yellow Onion – Adds sweetness and depth; shallots work well for a milder taste.
  • Garlic – Elevates flavor significantly; fresh minced garlic is best but garlic powder can work in a pinch.
  • Long-Grain White Rice – Forms the base; quinoa makes a great gluten-free substitute.
  • Black Beans – Packed with protein and fiber; kidney beans or chickpeas are excellent alternatives.
  • Chili Powder – Adds a warm, spicy depth; adjust according to your heat preference.
  • Cumin – Brings an earthy flavor that complements the dish beautifully.
  • Smoked Paprika – Imparts a rich, smoky taste; a touch can transform the flavor profile.
  • Dried Oregano – Enhances the overall flavor; can be substituted with dried basil for a different note.
  • Salt & Black Pepper – Essential for seasoning and bringing out the flavors.

For the Sauce

  • Diced Tomatoes – Provides moisture and acidity; fresh or crushed tomatoes can work too.
  • Tomato Sauce – Adds richness; marinara sauce can be used for added flavor.
  • Vegetable Broth – Infuses the dish with flavor; low-sodium options are a healthier choice.

For the Topping

  • Shredded Cheese (Cheddar/Monterey Jack) – The crowning glory that makes it cheesy and indulgent; Use dairy-free cheese for a vegan option.
  • Cilantro (Optional) – A fresh garnish that adds brightness; parsley is a nice alternative.

With these ingredients for your Vegetarian Stuffed Pepper Casserole, you’re poised to create a delightful meal perfect for any anxious weeknight. Dive in, and enjoy the process of bringing this hearty dish to life!

Step‑by‑Step Instructions for Vegetarian Stuffed Pepper Casserole Recipe

Step 1: Preheat the Oven
Begin by preheating your oven to 375°F (190°C). While the oven warms up, take a moment to grease a 9×13 inch baking dish or a cast-iron skillet with olive oil. This will help prevent the casserole from sticking and ensure an easy cleanup after your delicious Vegetarian Stuffed Pepper Casserole is baked to perfection.

Step 2: Sauté Aromatics
In a large skillet over medium heat, add a drizzle of olive oil and heat until shimmering. Add the chopped onion and sauté for about 5 minutes, stirring until it becomes translucent and fragrant. Then, toss in the minced garlic and chopped bell peppers, cooking for an additional 5-7 minutes until the peppers soften, turning vibrant.

Step 3: Combine Filling Ingredients
Now, it’s time to stir in the uncooked long-grain white rice along with the black beans and your chosen spices. Toast the rice and spices for about 2-3 minutes, stirring frequently to combine. This step enhances the flavors and ensures every bite of your Vegetarian Stuffed Pepper Casserole will be bursting with warmth and comfort.

Step 4: Add Liquids
Pour in the diced tomatoes, tomato sauce, and vegetable broth, making sure the rice is fully submerged under the liquid. Stir everything together and bring the mixture to a gentle simmer. Let it simmer for about 5 minutes, allowing the flavors to meld beautifully before transferring to the baking dish.

Step 5: Assemble Casserole
Carefully transfer the aromatic mixture into your greased baking dish, spreading it out evenly to ensure even cooking. This step is pivotal in making your Vegetarian Stuffed Pepper Casserole bake uniformly. Enjoy the delightful colors and scents wafting around as you prepare to create this comforting meal.

Step 6: Bake Covered
Cover your baking dish with aluminum foil to trap the steam and moisture inside. Place it in the preheated oven and bake for 45 minutes. This cooking time allows the rice to absorb all the flavors while becoming tender, creating a fluffy texture that’s the hallmark of a perfect casserole.

Step 7: Add Cheese
Once baking time is up, carefully remove the foil and sprinkle a generous amount of shredded cheese over the top of the casserole. Return it to the oven uncovered, and bake for an additional 10-15 minutes until the cheese is melted, bubbly, and lightly golden. This step adds that creamy finish you crave in a Vegetarian Stuffed Pepper Casserole.

Step 8: Rest and Garnish
After the cheese has melted, remove the casserole from the oven and let it rest for about 10 minutes. This resting period helps the casserole set for easier serving. Once rested, garnish with fresh cilantro for an added burst of flavor before diving in and enjoying your delightful Vegetarian Stuffed Pepper Casserole!

Expert Tips for Vegetarian Stuffed Pepper Casserole

  • Prep Ahead: Make your casserole filling in advance and store it in the fridge for a day. It saves time on busy weeknights and flavors deepen.

  • Use Fresh Ingredients: Fresh bell peppers and herbs elevate your Vegetarian Stuffed Pepper Casserole. Avoid wilted veggies to ensure a delicious outcome.

  • Check Rice: Ensure the rice is fully submerged in liquid before baking. This helps avoid undercooked rice, preventing disappointment in your casserole.

  • Cheese Options: Experiment with different cheeses or double the cheese for extra creaminess. Just remember to adjust quantities for dietary needs or preferences!

  • Rest Time Matters: Don’t skip the resting period after baking; it allows the casserole to set, making serving easier and enhancing flavors.

What to Serve with Vegetarian Stuffed Pepper Casserole

Pairing this colorful casserole with delightful sides can elevate your meal and create a satisfying dining experience.

  • Fresh Green Salad: A light, crisp salad with mixed greens and a vinaigrette adds a refreshing contrast to the hearty casserole. The crunch of the vegetables complements the casserole’s creaminess beautifully.

  • Garlic Bread: Warm, buttery garlic bread brings a comforting, nostalgic touch. Its crispy texture pairs perfectly with the savory flavors of the casserole.

  • Roasted Vegetables: Roasted seasonal veggies, like zucchini and carrots, enhance the meal with sweet and savory notes. Their caramelization adds depth to every bite.

  • Quinoa Salad: A light quinoa salad with lemon dressing and herbs can balance the richness of the casserole, providing a burst of freshness.

  • Creamy Avocado Dip: This creamy dip, served with tortilla chips or fresh veggies, offers a delightful contrast. The richness of avocado will harmonize with the spices in the casserole.

  • Chilled White Wine: A refreshing glass of Sauvignon Blanc or Pinot Grigio pairs well, enhancing the overall dining experience with its crisp notes.

  • Coconut Rice: Sweet and fluffy coconut rice can provide a tropical twist, adding an interesting flavor profile that complements the casserole’s spices.

  • Fruit Salad: For a sweet finish, a vibrant fruit salad can cleanse the palate and add a burst of freshness after a hearty meal.

Explore these pairings for a well-rounded meal and enjoy the culinary adventure!

How to Store and Freeze Vegetarian Stuffed Pepper Casserole

Fridge: Store leftovers in an airtight container for up to 3 days. This makes meal prep simple, ensuring you can enjoy the comforting flavors all week long.

Freezer: Freeze the cooled casserole in a tightly sealed container for up to 3 months. Thaw overnight in the fridge when ready to enjoy.

Reheating: To reheat, bake in a preheated oven at 350°F (175°C) until heated through, about 25-30 minutes. You can sprinkle a little extra cheese on top for that delightful melted finish.

Make Ahead: Prepare the casserole filling a day in advance and store it in the fridge. This allows for quick assembly and baking, making it an easy weeknight dinner option.

Make Ahead Options

These Vegetarian Stuffed Pepper Casserole preparations are perfect for busy home cooks looking to save time during the week! You can prepare the filling components (sautéed vegetables, rice, and spices) up to 24 hours in advance. Simply follow the steps to cook the onions, garlic, and peppers, then let the mixture cool before refrigerating it in an airtight container. When you’re ready to bake, spread the filling into your greased dish, add the liquids, and continue with the baking instructions. If you wish to store it longer, the entire casserole can be assembled and frozen for up to 3 months. Just remember to let it thaw overnight in the fridge before baking for best results—enjoy a comforting meal with minimal effort!

Vegetarian Stuffed Pepper Casserole Variations

Feel free to make this recipe uniquely yours with a few simple tweaks and substitutions that will delight your taste buds!

  • Dairy-Free: Swap regular cheese for dairy-free cheese options to create a vegan-friendly casserole. You won’t lose that creamy texture, and it’ll still feel indulgent.

  • Grain-Free: Replace rice with cauliflower rice for a lower-carb version that’s still hearty and satisfying. Giving a nod to classic flavors, this variation makes the casserole light and breezy.

  • Extra Veggies: Add sautéed spinach, corn, or diced zucchini to the filling for an explosion of colors and nutrients. The more, the merrier when it comes to veggies!

  • Spicy Kick: Incorporate fresh jalapeños or crushed red pepper flakes into your spice mix for a little heat. It’s the perfect way to elevate the flavor profile if you like things spicy.

  • Herb Infusion: Experiment with fresh herbs like basil or thyme instead of oregano. This twist will bring a fresh, aromatic essence that’ll make your casserole sing with flavor.

  • Bean Variety: Swap black beans with kidney beans or chickpeas for a different texture and flavor. Each provides a unique taste, making this casserole adaptable to your pantry’s contents.

  • Tomato Twist: For a unique sauce flavor, try using salsa or a homemade tomato basil sauce instead of plain tomato sauce. It adds zest and a touch of sweetness, showcasing a fun take on traditional flavors.

  • Cheese Medley: Mix different cheese types, such as mozzarella and pepper jack, to create a creamier, more flavorful topping. The result will be a gooey cheese explosion in every bite!

These variations bring personalized touches to your Vegetarian Stuffed Pepper Casserole, allowing you to tailor it to your family’s tastes. Whether you’re adding a spicy twist or mixing up the veggies, there’s no end to the delicious possibilities! If you’re looking for more comforting recipes, give the delightful Chili Cheese Sausage Casserole a try!

Vegetarian Stuffed Pepper Casserole Recipe FAQs

What kind of bell peppers should I use?
Absolutely! You can use red, yellow, or green bell peppers for this recipe. Each variety contributes its own flavor and sweetness. If you’re looking for a twist, try zucchini instead! Its mild taste provides a lovely substitute while still giving that satisfying texture.

How do I store leftovers from the casserole?
Very simple! Store your Vegetarian Stuffed Pepper Casserole in an airtight container in the fridge for up to 3 days. I often recommend dividing it into individual servings for easy grab-and-go meals. Just reheat in the microwave or oven, and enjoy the comforting flavors all over again!

Can I freeze this casserole for later?
Absolutely, you can! Just let your casserole cool completely, then transfer it into a tightly sealed container or freezer bag. It will hold up well in the freezer for up to 3 months. When you’re ready to enjoy it again, thaw it overnight in the fridge, then reheat in the oven at 350°F (175°C) until piping hot, about 25-30 minutes.

What should I do if my rice isn’t cooking properly in the casserole?
Great question! If you find that your rice isn’t fully cooked after baking, it’s likely that it wasn’t submerged in enough liquid before baking. Make sure the rice is well-covered with the tomato sauce and broth mixture. If you realize this too late, you can add a splash of broth or water and cover the dish, baking it for an additional 15-20 minutes until the rice is tender.

Are there any dietary considerations for this recipe?
Certainly! This Vegetarian Stuffed Pepper Casserole is naturally plant-based, making it a healthy option for vegetarians and vegans if you use dairy-free cheese. Always check ingredient labels if you have allergies, especially with canned products like beans and tomatoes. For those preparing meals for pets, avoid seasoning the casserole as many spices must be kept away from their diets.

Can I tweak the spices to enhance my casserole?
Very much so! The recipe calls for chili powder and cumin, but feel free to adjust these to match your taste preferences. If you love spicy food, adding red pepper flakes or even diced jalapeños can give your casserole a delightful kick. Just remember to taste as you go to achieve that perfect balance of flavors!

Vegetarian Stuffed Pepper Casserole Recipe

Hearty Vegetarian Stuffed Pepper Casserole Recipe to Savor

Enjoy this delicious Vegetarian Stuffed Pepper Casserole, a comforting and customizable dish that's perfect for easy weeknight dinners.
Prep Time 15 minutes
Cook Time 55 minutes
Resting Time 10 minutes
Total Time 1 hour 20 minutes
Servings: 6 servings
Course: Dinner
Cuisine: Vegetarian
Calories: 300

Ingredients
  

For the Casserole
  • 4 whole Bell Peppers Try zucchini for a unique twist.
  • 1 whole Yellow Onion Shallots work well for a milder taste.
  • 3 cloves Garlic Fresh minced garlic is best.
  • 1 cup Long-Grain White Rice Quinoa makes a great gluten-free substitute.
  • 1 can Black Beans Kidney beans or chickpeas are excellent alternatives.
  • 1 tablespoon Chili Powder Adjust according to your heat preference.
  • 1 teaspoon Cumin
  • 1 teaspoon Smoked Paprika
  • 1 teaspoon Dried Oregano Can be substituted with dried basil.
  • 1 teaspoon Salt
  • 0.5 teaspoon Black Pepper
For the Sauce
  • 14.5 ounces Diced Tomatoes Fresh or crushed tomatoes can work too.
  • 8 ounces Tomato Sauce Marinara sauce can be used for added flavor.
  • 1 cup Vegetable Broth Low-sodium options are a healthier choice.
For the Topping
  • 1 cup Shredded Cheese (Cheddar/Monterey Jack) Use dairy-free cheese for a vegan option.
  • 0.25 cup Cilantro Optional; parsley is a nice alternative.

Equipment

  • oven
  • large skillet
  • 9x13 Inch Baking Dish or Cast-Iron Skillet

Method
 

Instructions
  1. Preheat your oven to 375°F (190°C) and grease a 9x13 inch baking dish or a cast-iron skillet with olive oil.
  2. In a large skillet over medium heat, add olive oil and heat until shimmering. Add chopped onion and sauté for about 5 minutes until translucent.
  3. Toss in minced garlic and chopped bell peppers, cooking for an additional 5-7 minutes until peppers soften.
  4. Stir in uncooked long-grain white rice along with black beans and spices. Toast for about 2-3 minutes.
  5. Pour in diced tomatoes, tomato sauce, and vegetable broth, ensuring the rice is submerged. Bring to a gentle simmer for 5 minutes.
  6. Transfer the mixture to your greased baking dish, spreading evenly.
  7. Cover the dish with aluminum foil and bake for 45 minutes.
  8. Remove the foil and sprinkle shredded cheese over the casserole. Bake uncovered for an additional 10-15 minutes.
  9. Let the casserole rest for about 10 minutes before garnishing with fresh cilantro.

Nutrition

Serving: 1servingCalories: 300kcalCarbohydrates: 45gProtein: 12gFat: 8gSaturated Fat: 4gPolyunsaturated Fat: 1gMonounsaturated Fat: 2gCholesterol: 20mgSodium: 700mgPotassium: 600mgFiber: 10gSugar: 5gVitamin A: 30IUVitamin C: 80mgCalcium: 15mgIron: 15mg

Notes

Store leftovers in an airtight container for up to 3 days. Freeze for up to 3 months. Thaw overnight in the fridge when ready to enjoy.

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