Why You’ll Love Quinoa Pizza Casserole: A Healthy Twist on a Classic Comfort Food Recipe

I enjoy how this casserole transforms simple ingredients into a satisfying, pizza-inspired meal. The quinoa makes it filling without being heavy, the vegetables add freshness, and the melted cheese ties everything together. I also appreciate how easy it is to prepare ahead and bake when I’m ready to eat.

Ingredients

(Note: All ingredient amounts are listed in the recipe card below.)

For the Casserole:
1 cup quinoa: A nutrient-dense, gluten-free grain that forms the base of the casserole, providing protein and fiber.
2 cups water or vegetable broth: To cook the quinoa and add extra flavor.
2 tablespoons olive oil: For sautéing the vegetables and adding richness.
1 small onion, finely chopped: A flavorful base for the casserole that adds sweetness and depth.
1 bell pepper, finely chopped: Adds color and a mild sweetness to the dish.
1 cup spinach, chopped: A great way to sneak in some greens while adding texture.
2 cloves garlic, minced: For a burst of flavor that complements the other ingredients.
1 ½ cups marinara sauce: A tangy, rich tomato sauce that adds the pizza-like flavor.
2 teaspoons dried Italian seasoning: A mix of basil, oregano, and thyme to season the dish.
1 teaspoon red pepper flakes (optional): For a little heat to balance out the sweetness of the vegetables and sauce.
1 ½ cups shredded mozzarella cheese: The classic pizza cheese that melts beautifully and adds a creamy texture.
½ cup grated Parmesan cheese: Adds a salty, savory depth of flavor to the casserole.
Salt and pepper, to taste: To season the dish to your liking.

For the Topping:
Fresh basil leaves: For garnish, adding a fresh, aromatic touch.
Extra mozzarella cheese: Optional, for a gooey, melty top.

Directions

I start by rinsing the quinoa under cold water to remove any bitterness. I add the quinoa and water or vegetable broth to a saucepan, bring it to a boil, then reduce the heat, cover, and let it simmer until tender. Once cooked, I fluff it with a fork and set it aside.

Next, I heat the olive oil in a large skillet and sauté the onion, bell pepper, and garlic until softened and fragrant. I stir in the spinach and cook just until it wilts, seasoning everything with salt, pepper, and red pepper flakes if I want extra heat.

In a large bowl, I combine the cooked quinoa, sautéed vegetables, marinara sauce, and Italian seasoning. I mix in the mozzarella and Parmesan cheeses, then spread the mixture evenly into a greased baking dish. If I’m in the mood for extra cheese, I sprinkle more mozzarella on top before baking until bubbly and golden.

Servings and Timing

I usually slice this casserole into 4 generous servings. The prep time is about 10 minutes, the cook time is roughly 50 minutes, and the total time comes out to about 1 hour.

Storage/Reheating

I store leftovers in an airtight container in the refrigerator for up to 4 days. When reheating, I warm individual portions in the oven or microwave until heated through. If the casserole looks dry, I add a small spoonful of marinara sauce before reheating.

FAQs

Can I make this casserole ahead of time?

I often assemble it in advance and store it in the refrigerator, then bake it when I’m ready.

Is quinoa necessary for this recipe?

I like quinoa best here, but I can substitute cooked rice or another grain if needed.

Can I make this dish vegan?

I can swap the cheese for dairy-free alternatives to keep it fully vegan.

Does this casserole freeze well?

I find it freezes well when tightly wrapped, and I thaw it overnight before reheating.

What vegetables work well in this recipe?

I sometimes add mushrooms, zucchini, or olives for extra pizza-style flavor.

Can I use store-bought marinara sauce?

I usually do, especially when I want to save time.

How do I keep the casserole from drying out?

I make sure there’s enough sauce and avoid overbaking.

Is this casserole spicy?

It’s mild unless I add red pepper flakes, which I adjust to taste.

Can I serve this as a main dish?

I often serve it as a main course with a simple side salad.

What pan size works best?

I usually use an 8×8-inch or 9×9-inch baking dish for even cooking.

Conclusion

I find this quinoa pizza casserole to be the perfect blend of comfort and nutrition. It satisfies my pizza cravings while still feeling wholesome, and it’s a recipe I enjoy making again and again for easy, flavorful meals.