Roasted Cauliflower Pizza Casserole

If you’re craving the flavors of pizza without the carbs or heaviness, this Roasted Cauliflower Pizza Casserole is your answer. Loaded with roasted cauliflower, gooey cheese, savory sauce, and all your favorite pizza toppings, it’s a low-carb, veggie-packed twist that delivers pure comfort and satisfaction in every bite.

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Why You’ll Love This Recipe
Low-Carb & Keto-Friendly – Skip the crust, not the flavor.
Veggie-Packed – A delicious way to eat more vegetables.
Totally Customizable – Choose your favorite pizza toppings and make it your own.
Family-Friendly – Even picky eaters will love this cheesy bake.
Great for Meal Prep – Make ahead and reheat with ease for busy weeknights.

Ingredients You’ll Need

For the Base:
1 large head cauliflower, cut into florets
1 tbsp olive oil
½ tsp salt
½ tsp black pepper
½ tsp garlic powder
½ tsp Italian seasoning

For the Sauce & Toppings:
1 cup marinara sauce (low-sugar preferred)
2 cups shredded mozzarella cheese
½ cup grated Parmesan cheese
½ cup cooked chicken sausage or beef sausage, sliced
½ cup sliced black olives
½ cup chopped green bell pepper
¼ cup red onion, thinly sliced
½ tsp crushed red pepper flakes (optional)

For Garnish:
Fresh basil leaves or chopped parsley

Tools You’ll Need
Large baking sheet
Mixing bowls
9×13 inch casserole dish
Cheese grater
Spatula

Step-by-Step Instructions

Step 1: Preheat the Oven
Preheat your oven to 425°F (220°C). Line a large baking sheet with parchment paper.

Step 2: Roast the Cauliflower
Place cauliflower florets on the baking sheet. Drizzle with olive oil and season with salt, pepper, garlic powder, and Italian seasoning.
Toss to coat evenly and roast for 20-25 minutes, until tender and golden around the edges.
Remove from oven and set aside. Lower oven temperature to 375°F (190°C).

Step 3: Assemble the Casserole
In a 9×13 inch casserole dish, spread half of the marinara sauce on the bottom.
Layer roasted cauliflower on top.
Add sausage slices, olives, bell pepper, and red onion evenly over the cauliflower.
Spoon the remaining marinara sauce on top.

Step 4: Add the Cheese
Sprinkle mozzarella cheese and Parmesan evenly over the top.
Add crushed red pepper flakes if desired for extra heat.

Step 5: Bake the Casserole
Bake at 375°F for 20-25 minutes, or until the cheese is bubbly and golden brown.
Remove from oven and let rest for 5 minutes before serving.

Step 6: Garnish and Serve
Sprinkle with fresh basil or parsley before serving for a burst of freshness.

Tips for the Best Cauliflower Pizza Casserole
Roast the Cauliflower – Roasting brings out flavor and removes moisture for a firmer texture.
Use Low-Moisture Cheese – Helps avoid a watery casserole.
Customize the Toppings – Add mushrooms, spinach, or even pineapple if you like.
Drain the Sauce – If your marinara is watery, simmer it to reduce before using.
Make It Spicy – Add jalapeños or chili flakes for a kick.

Serving Suggestions
Side Salad – A simple green salad with balsamic vinaigrette pairs perfectly.
Garlic Knots – For those not watching carbs, a few garlic knots go great.
Zucchini Noodles – Another low-carb side that complements the flavors well.
Fruit Skewers – Light and fresh to contrast the savory casserole.

How to Store & Reheat

Storing:
Refrigerate: Keep in an airtight container for up to 4 days.
Freeze: Cool completely and freeze individual portions for up to 2 months.

Reheating:
Oven: Reheat at 350°F until hot and bubbly, about 15 minutes.
Microwave: Heat individual portions on medium for 1-2 minutes.

Frequently Asked Questions

1. Can I use frozen cauliflower?
   Yes, but roast it well to remove excess moisture before assembling the casserole.
2. Is this dish vegetarian?
   It can be! Simply skip the sausage or use a plant-based alternative.
3. Can I add more veggies?
   Absolutely! Mushrooms, spinach, zucchini, or eggplant work great.
4. What kind of sauce should I use?
   Any low-sugar marinara or pizza sauce will work. You can also make your own.
5. Can I prep this ahead of time?
   Yes, assemble the casserole and refrigerate up to 24 hours before baking.

Final Thoughts
Roasted Cauliflower Pizza Casserole is a flavor-packed, wholesome dish that combines all the pizza toppings you love with the health benefits of cauliflower. It’s perfect for anyone looking for a low-carb, gluten-free alternative that doesn’t compromise on taste or texture.

Make it for dinner tonight, or prep it for a week of tasty lunches—you won’t be disappointed!

Preparation Time: 15 minutes
Cooking Time: 45 minutes
Cuisine: American

Nutritional Information (Per Serving):
Calories: 290 | Protein: 19g | Carbohydrates: 9g | Fat: 20g | Fiber: 3g | Sodium: 520mg

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