Description

Craving the comforting flavors of pizza without the carbs and guilt? This Roasted Cauliflower Pizza Casserole delivers all the cheesy, saucy goodness you love—in a healthier, veggie-packed format! Roasted cauliflower forms the base, layered with your favorite pizza toppings and bubbly melted cheese. It’s perfect for family dinners, low-carb meal prep, or a cozy weekend treat.

Want recipes like this delivered straight to your inbox? Subscribe now to get the latest culinary creations you’ll love.

Ingredients

Scale

For the Roasted Cauliflower Base:

1 large head cauliflower, cut into florets
2 tbsp olive oil
1/2 tsp salt
1/2 tsp black pepper
1/2 tsp garlic powder
1/2 tsp Italian seasoning

For the Pizza Sauce Layer:

1 cup marinara or pizza sauce (low-sugar preferred)
1/2 tsp dried oregano
1/2 tsp basil
1/4 tsp red pepper flakes (optional for heat)

For the Toppings:

1 1/2 cups shredded mozzarella cheese
1/4 cup grated Parmesan cheese
1/2 cup sliced black olives
1/2 cup sliced mushrooms
1/2 cup chopped bell peppers
1/2 cup cooked beef sausage or ground chicken
1/4 cup red onion, thinly sliced
Fresh basil or parsley, for garnish

Cook Mode Prevent your screen from going dark

Instructions

Step 1: Roast the Cauliflower

Preheat oven to 425°F (220°C).
Toss cauliflower florets in olive oil, salt, pepper, garlic powder, and Italian seasoning.
Spread on a baking sheet in a single layer.
Roast for 20-25 minutes until golden and tender, stirring halfway.
Remove and set aside.

Step 2: Prepare the Sauce and Toppings

In a small bowl, combine marinara sauce with oregano, basil, and red pepper flakes.
If using raw meats or toppings like mushrooms and onions, lightly sauté them until tender.

Step 3: Assemble the Casserole

Lower oven temperature to 375°F (190°C).
Lightly grease a 9×13-inch casserole dish.
Layer roasted cauliflower evenly across the bottom.
Pour the seasoned pizza sauce over the cauliflower.
Sprinkle half of the mozzarella and all the Parmesan cheese.
Add prepared toppings: mushrooms, olives, peppers, onions, and cooked sausage.
Top with the remaining mozzarella cheese.

Step 4: Bake the Casserole

Bake uncovered for 20-25 minutes, or until the cheese is melted and bubbly.
Broil for an additional 2-3 minutes for a golden, slightly crispy top.
Remove from oven and let rest for 5 minutes.

Step 5: Garnish and Serve

Sprinkle chopped fresh basil or parsley over the top.
Slice and serve hot—just like your favorite deep-dish pizza!

Notes

Roast the Cauliflower – It adds depth and prevents a watery casserole.
Season Well – Boosts the veggie base with bold pizza flavor.
Pre-Cook Toppings – Especially mushrooms and sausage to avoid excess moisture.
Use Quality Sauce – A rich, low-sugar pizza sauce brings everything together.

Prep Time: 20 minutes
Cook Time: 25 minutes
Cuisine: American