Name: Delicious Hamburger Green Bean Casserole with Mushrooms
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Ingredients: 1 lb Ground Beef (80/20 blend) (Substitute with ground turkey for a leaner option.); 2 cups Green Beans, trimmed (Use fresh or thoroughly thawed frozen beans.); 1 cup Onion, diced (Yellow or white onions are ideal.); 1 cup Mushrooms, sliced (Button or baby bella mushrooms work beautifully.); 3 tsp Garlic, minced (Fresh garlic is highly recommended.); ⅓ cup Beef or Chicken Broth, low-sodium (Chicken broth can be used as a substitute.); ⅓ cup Sour Cream, full-fat (Greek yogurt can be swapped in for a lighter version.); 2 Tbsp Cream Cheese, room temperature (Make sure it’s softened for easy mixing.); ½ tsp Sea Salt (Adjust according to your taste preference.); ½ tsp Black Pepper, freshly ground; ½ tsp Worcestershire Sauce (For a gluten-free alternative, use coconut aminos.); ⅓ tsp Dried Thyme (Fresh thyme can also be used.); 2 cups Colby Jack Cheese, shredded (Feel free to substitute with sharp cheddar.)

As I stood in my kitchen, the comforting aroma of sautéed onions and savory ground beef filled the air, instantly transporting me to a cozy dinner scene I could never forget. Today, I’m excited to share my delightful recipe for Hamburger Green Bean Casserole with Mushrooms that has become a staple in our home. This one-pan meal not only warms the heart but also comes together in under 30 minutes, making it the perfect quick dinner recipe for busy weeknights. Keto-friendly and low-carb, this casserole is a family favorite that even the pickiest eaters rave about, all while allowing for minimal cleanup. Who wouldn’t want to dive into a hearty dish that delivers warmth and satisfaction in every bite? Curious how to recreate this comforting meal? Let’s get cooking!

Why is this casserole a must-try?

Simplicity at Its Core: This Hamburger Green Bean Casserole requires just one pan, making cleanup a breeze after you enjoy this hearty meal.

Quick & Easy: With a cooking time of under 30 minutes, you’ll have dinner ready in no time, perfect for those busy weeknights.

Flavor Explosion: The combination of umami-rich ground beef, earthy mushrooms, and creamy cheese creates a comforting dish that your family will love.

Keto-Friendly Delight: This casserole fits seamlessly into low-carb lifestyles, with just around 7 net carbs per serving, letting you indulge without any guilt!

Versatile Ingredients: You can easily customize it with your favorite veggies or substitute proteins—like turkey or chicken—making it adaptable for anyone’s palate.

Family-Friendly Appeal: It’s an instant winner among picky eaters, similar to other crowd-pleasers like Chicken Rice Casserole or Cheesy Sausage Casserole, ensuring everyone leaves the table satisfied.

Hamburger Green Bean Casserole Ingredients

• Dive into the flavor with these essential ingredients for a delightful Hamburger Green Bean Casserole with Mushrooms!

For the Base

Ground Beef (1 lb, 80/20 blend) – A hearty protein that forms the foundation of this dish; substitute with ground turkey for a leaner option.
Green Beans (2 cups, trimmed) – Adds fiber and a crisp texture; use fresh or thoroughly thawed frozen beans for best results.
Onion (1 cup, diced) – Provides natural sweetness and depth; yellow or white onions are ideal.
Mushrooms (1 cup, sliced) – Contributes earthy flavors and a satisfying texture; button or baby bella mushrooms work beautifully.
Garlic (3 tsp, minced) – Infuses the dish with a robust flavor; fresh garlic is highly recommended.

For the Sauce

Beef or Chicken Broth (⅓ cup, low-sodium) – Adds moisture and helps steam the veggies; chicken broth can be used as a flavorful substitute.
Sour Cream (⅓ cup, full-fat) – Delivers a creamy base to the casserole; for a lighter version, Greek yogurt can be swapped in.
Cream Cheese (2 Tbsp, room temperature) – Ensures a rich, velvety sauce; make sure it’s softened for easy mixing.

For Seasoning

Sea Salt (½ tsp) – Key for enhancing flavors; adjust according to your taste preference.
Black Pepper (½ tsp, freshly ground) – Adds a hint of spice that brings the dish to life.
Worcestershire Sauce (½ tsp) – Infuses delicious umami notes; for a gluten-free alternative, use coconut aminos or wheat-free tamari.
Dried Thyme (⅓ tsp) – Introduces aromatic herbal notes; fresh thyme can also be an option for a burst of freshness.

For the Topping

Colby Jack Cheese (2 cups, shredded) – Offers a fantastic melty topping; feel free to substitute with sharp cheddar or a Mexican cheese blend, reducing to 1 cup for a lighter dish.

Step‑by‑Step Instructions for Hamburger Green Bean Casserole with Mushrooms

Step 1: Brown the Beef
Heat a large skillet over medium heat, adding the ground beef to the pan. Break it apart with a spatula and cook until no pink remains, about 5 minutes. The beef should be browned and fragrant. Once cooked, reserve 1 tablespoon of the fat in the skillet and set the browned beef aside.

Step 2: Sauté Aromatics
In the same skillet with the reserved beef fat, add the diced onions. Sauté for 3-4 minutes, stirring occasionally, until the onions become translucent and fragrant. Then, add the sliced mushrooms and continue to cook for an additional 2 minutes, allowing them to caramelize slightly and enhance their flavor.

Step 3: Add Green Beans & Seasonings
Stir in the trimmed green beans, minced garlic, and the low-sodium beef or chicken broth. Cook for 2-3 minutes until the green beans are bright green and crisp-tender. The mixture should be bubbling lightly, signaling that everything is coming together for your delicious Hamburger Green Bean Casserole with Mushrooms.

Step 4: Create Creamy Base
Lower the heat to medium-low, then add the softened cream cheese to the skillet, stirring until it melts into the mixture. Once the cream cheese is fully incorporated, mix in the sour cream, creating a smooth and creamy sauce that envelops the vegetables beautifully.

Step 5: Combine & Season
Return the reserved browned beef to the skillet, mixing it gently with the creamy vegetable base. Add the sea salt, freshly ground black pepper, Worcestershire sauce, and dried thyme. Combine everything well, ensuring that the ground beef is nicely coated in the flavorful sauce.

Step 6: Add Cheese Topping
Sprinkle the shredded Colby Jack cheese evenly over the top of the casserole mixture in the skillet. Spread the cheese out to ensure every part of the casserole receives a generous cheesy layer that will melt beautifully.

Step 7: Melt & Serve
Broil the casserole on high for 1-2 minutes until the cheese is golden and bubbly. Alternatively, cover the skillet and cook on low heat for 3-4 minutes until the cheese has melted. Once it’s ready, serve hot, and enjoy this comforting Hamburger Green Bean Casserole with Mushrooms!

How to Store and Freeze Hamburger Green Bean Casserole

Fridge: Refrigerate leftover casserole in an airtight container for up to 4 days. Simply reheat in the microwave or a preheated 350°F oven until warmed through.

Freezer: For long-term storage, freeze the casserole in a freezer-safe container for up to 3 months. Thaw overnight in the fridge before reheating.

Reheating: When reheating, add a splash of broth to keep the casserole moist and cover with foil to prevent drying out, reheating until the cheese is bubbly and hot.

Make-Ahead: Consider preparing the Hamburger Green Bean Casserole with Mushrooms through step 5, cool, cover, and refrigerate for up to 24 hours, making dinnertime even easier!

Make Ahead Options

These Hamburger Green Bean Casserole with Mushrooms are perfect for busy weeknights when time is tight! You can prepare the casserole filling—steps 1 through 5—up to 24 hours in advance. Simply cool it down, cover tightly, and refrigerate. To maintain quality, store the cheese separately until just before baking, as it ensures a fresh melt. When you’re ready to serve, simply sprinkle the cheese on top, broil for 1-2 minutes until bubbly, or cook on low heat for 3-4 minutes until melted. This prep-ahead strategy not only saves time but guarantees a delightful dish that your family will love!

Hamburger Green Bean Casserole Variations

Feel free to add your personal twist to this comforting casserole, making it uniquely yours!

Lean & Mean: Substitute ground beef for ground turkey or chicken for a healthier option while keeping the flavor lively.
Veggie Boost: Toss in additional veggies like bell peppers, zucchini, or spinach to elevate nutrition and color. They provide a lovely crunch and vibrant taste.
Cheese Switch-Up: Experiment with different cheeses! Sharp cheddar or a Mexican blend can bring new flavors; just reduce to 1 cup for a lighter topping.
Creamy & Lighter: Use Greek yogurt instead of sour cream for a lighter version without sacrificing creaminess. It’s a subtle change that works wonders!
Heat It Up: For some spice, mix in diced jalapeños or a sprinkle of red pepper flakes to the mix. A heartwarming addition for those who like a bit of a kick!
Herb Infusion: Fresh herbs can bring a whole new experience; try incorporating fresh thyme or parsley to brighten the flavors. It’s a delicious touch that’s worth it!
Broccoli Love: Add steamed broccoli to the casserole for an extra layer of texture and health benefits. It’s a tasty way to boost the veggie quotient.
Make-ahead Magic: Prepare your casserole through Step 5, cool, cover, and refrigerate up to 24 hours. It’s a lifesaver when you need a quick dinner solution, similar to when you want a comforting Tuna Noodle Casserole for busy nights!

Enjoy experimenting with your casserole, and let your kitchen shine with your personal flair!

What to Serve with Easy Keto Hamburger Green Bean Casserole with Mushrooms

This delightful one-pan meal is perfect for pairing with sides that enhance its comforting flavors and textures.

Simple Side Salad: A light salad of mixed greens with a tangy vinaigrette adds freshness and balances the casserole’s richness.
Steamed Broccoli: Tender broccoli provides a satisfying crunch and a burst of color, making the meal more vibrant and nutritious.
Garlic Breadsticks: Soft, buttery breadsticks are perfect for mopping up the creamy sauce, adding a delightful contrast to the dish.
Cauliflower Rice: For a low-carb alternative, serve over lightly seasoned cauliflower rice, allowing for a delicious, guilt-free base.
Roasted Asparagus: The crisp-tender texture of roasted asparagus complements the casserole beautifully, with its nutty flavor enhancing every bite.
Crispy Brussels Sprouts: Roasted to perfection, Brussels sprouts offer a delightful crunch and a slightly bitter note that contrasts with the cheesy flavors of the casserole.
Refreshing Iced Tea: A glass of freshly brewed iced tea, sweetened or unsweetened, pairs well, cleansing the palate between bites and adding a soothing touch.
Decadent Brownies: For dessert, indulge in fudgy brownies, providing a rich sweetness that perfectly rounds off this comforting meal experience.

Expert Tips for Hamburger Green Bean Casserole

• Reserve Beef Fat: Always save that tablespoon of beef fat from browning the meat. It adds depth to the sautéed vegetables and enhances the overall flavor of your casserole.

• Monitor Heat Levels: When incorporating dairy ingredients like cream cheese and sour cream, keep the heat at medium-low. This prevents curdling and ensures a creamy sauce that is free from lumps.

• Make-Ahead Magic: Prepare the casserole up to step 5, let it cool, then cover and refrigerate for up to 24 hours. This makes mealtime easier on busy days without compromising taste!

• Use the Right Pan: A cast-iron skillet is ideal for this recipe, but if you don’t have one, feel free to use a baking dish. Just remember to finish under the broiler to get that beautifully melted cheese topping.

• Customize with Veggies: Don’t hesitate to add your favorite veggies! Bell peppers or zucchini can be great additions to this Hamburger Green Bean Casserole with Mushrooms, enhancing both nutrition and flavor.

Hamburger Green Bean Casserole with Mushrooms Recipe FAQs

What kind of green beans should I use?
Absolutely! You can use either fresh or frozen green beans for this Hamburger Green Bean Casserole with Mushrooms. If using frozen, make sure they’re fully thawed and dried to prevent excess moisture in your casserole.

How should I store leftover casserole?
Very! Store leftover Hamburger Green Bean Casserole in an airtight container in the refrigerator for up to 4 days. When reheating, either use the microwave or a preheated oven set to 350°F until it’s warmed through and the cheese is bubbly.

Can I freeze this casserole?
Definitely! To freeze, let the casserole cool completely, then transfer it to a freezer-safe container or wrap it tightly in plastic wrap and aluminum foil. It can be frozen for up to 3 months. When you’re ready to enjoy it, thaw overnight in the fridge, and reheat in the oven until hot.

What if I don’t have all the ingredients?
Not a problem! You can substitute ground beef with ground turkey or chicken for a leaner option. Additionally, feel free to add other veggies, such as bell peppers or zucchini, to enhance both flavor and nutrition. Be creative—this dish is quite forgiving!

Are there any dietary considerations?
Absolutely! This Hamburger Green Bean Casserole is keto-friendly and low-carb, boasting only around 7 net carbs per serving. For those with gluten sensitivities, you can substitute Worcestershire sauce with coconut aminos or wheat-free tamari to ensure it fits your dietary needs.

What should I do if the cheese is not melting evenly?
If you find that the cheese isn’t melting evenly, cover the skillet while heating it on low for 3-4 minutes. Alternatively, broil it in the oven for a minute or two but keep a close eye on it to avoid burning. A gentle heat can help it melt beautifully!