Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.

Place the mini pizza crusts on the prepared baking sheet and spread pizza sauce over each crust.

Cut mozzarella cheese slices into ghost shapes and place them on the saucy pizza base. Add black olives as eyes.

Lay mozzarella cheese strips criss-cross over the sauce, leaving space for black olives as mummy eyes.

Sprinkle shredded mozzarella cheese over the sauce and use orange bell pepper slices to form jack-o'-lantern faces.

Bake in the preheated oven for 8-10 minutes until cheese is melted and bubbly.

Remove from the oven and let cool for a minute before serving warm.