This vegan Pizza Quinoa Casserole recipe is the perfect combination of pizza and quinoa. It's all the delicious flavors of a veggie supreme pizza, but delivered in healthier quinoa form! (Vegan, gluten-free, oil-free option.)
This tasty vegan casserole is the perfect combination of pizza and quinoa!
It's all the delicious flavors of pizza, but delivered in a healthier quinoa form.
It's brimming with fresh, nourishing ingredients to create a true veggie supreme. I enjoy garlic, onion, mushroom, tomato, spinach, and green pepper but you can change up the vegetables as you wish.
Plus there's even the wonderful aroma of pizza as it bakes. And the leftovers are great so you can reheat it throughout the week!
Ingredients for Pizza Quinoa Casserole
For this recipe you'll combine in a large bowl then bake in the oven:
- White quinoa: We'll use one cup white quinoa for this recipe and cook it on the stove before baking.
- Yellow onion: Or you can use sweet onion or white onion if desired.
- Green bell pepper: Or another color such as red bell pepper. (This adds a lot of flavor, so try not to leave it out!)
- Mushrooms: I use cremini mushrooms, but white button, shiitake, Portobello, or others work great too.
- Fresh garlic cloves
- Roma tomato
- Fresh baby spinach
- Tomato sauce: We'll use a 15 ounce can tomato sauce.
- Vegan mozzarella shreds: I enjoy Miyoko's, Follow Your Heart, or Violife brands, but use your own favorite dairy-free cheese. (Or see below for an oil-free option.)
- Italian seasoning: Be sure your pantry spices are fresh (not expired) for best flavor.
- Fresh basil: This is a delicious finishing touch! Sprinkle a couple tablespoons on top before serving for beautiful garnish and bright flavor.
Make it "meaty": For extra heartiness and protein, add your favorite vegan pepperoni or sausage crumbles to the mixture. For sausage or beef crumbles, cook these separately according to package instructions. Then stir it into the mixture before adding to the baking dish.
Oil-free option: Omit the vegan cheese shreds as store-bought versions contain oil. You can leave it out entirely or replace with about a quarter cup nutritional yeast flakes. This adds some cheesy flavor. If omitting the cheese, you'll want to salt the casserole mixture to taste to bring out the flavors.
Spices & seasonings: Instead of Italian seasoning, change it up with your own favorites. Try dried basil, oregano, fennel, marjoram, parsley, etc.
Toppings: You can also add sliced black olives, Vegan Parmesan Cheese, or red pepper flakes to taste for a little spice.
Pairing: This casserole is great served with a simple salad and a side of garlic bread or breadsticks.
Store leftovers in an airtight container in the fridge. I find it keeps for about 4-5 days. So it's a great choice for meal prep throughout the week. Simply reheat in the microwave when ready to enjoy.
For more inspiration, also browse all easy vegan dinner recipes.
Pizza Quinoa Casserole (Vegan!)
- 1 cup white quinoa (uncooked)
- 1 yellow onion
- 1 green bell pepper
- 8 oz. mushrooms
- 4 cloves garlic
- 1 cup fresh baby spinach
- 3 roma tomatoes
- 15 oz. can tomato sauce
- 3/4 cup vegan mozzarella shreds*
- 2 tsp. Italian seasoning
- 2 Tbsp. fresh basil (for serving)
- Preheat oven to 375°F (190°C).
- Cook quinoa: In a saucepan, add rinsed quinoa and 1.5 cups water. Bring to a light boil, then cover, reduce heat, and simmer for 15-20 minutes or until liquid is absorbed.
- Meanwhile, dice onion, bell pepper, and mushrooms.
- In a skillet over medium-high heat, sauté onion, green pepper, and mushrooms for about 7-8 minutes. (I use 3 Tbsp. water/broth for no-oil sauté method.)
- Meanwhile, mince garlic and chop spinach.
- Add garlic, spinach, and Italian seasoning to the skillet. Stir and sauté 1-2 minutes. Turn off heat.
- When quinoa is cooked, place it in a large mixing bowl. Add sautéed vegetables, tomato sauce, cheese shreds, and roma tomatoes (diced). Stir well to combine.
- Spread mixture into a 9x13 inch baking dish and gently press down. Top with a light sprinkle of cheese if desired.
- Bake for 25 minutes. Garnish with fresh chopped basil before serving.
Nutrition Per Serving (Estimate)
Sodium: This is omitted as I cannot provide an accurate number. I encourage you to calculate your own to provide a much more precise reading based on the exact ingredients, brands, and amounts you're using.
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