This Vegetarian Pizza Quinoa Casserole is the tastiest, easiest, healthiest family dinner recipe to lure your kiddos into eating their veg!
As a busy mama, I’m all about one-pan and one-pot meals. I grew up eating casseroles because my mom, like most working parents, couldn’t be bothered cooking everything separately. Now I can totally relate!
Which is why this easy pizza casserole with quinoa comes in clutch on those busy weeknights when I just can’t be bothered to spend hours in the kitchen. This is also such an easy recipe because you can basically just make it using whatever goodies you already have in your fridge.
So If you and your kiddos love all things pizza, you’re going to LOVE this pizza-inspired casserole recipe.
Table of contents
Why This Recipe Works
This easy pizza casserole with quinoa is made for pizza-lovers and busy parents who need to get dinner on the table stat! But here are a few more reasons why you’re going to love this recipe:
- Gluten free
- Kid friendly
- High in protein and fibre
- Only requires 10 ingredients
- Takes 35 minutes to prepare
Quinoa – quinoa is the grain of choice for this easy pizza casserole as it is high in fibre and protein. It is also relatively easy to prepare! But if you don’t have quinoa on hand, feel free to use whatever grain you prefer.
Cheese – for this easy pizza casserole we are using a combo of mozzarella and parmesan cheese. Don’t forget to admire the glorious cheese pull before you dig in!
Pasta Sauce – Along with the cheese, pasta sauce is an obvious must to make this pizza-themed. Be sure to look for a low-sodium variety.
Veggies – While there is totally room to explore in this recipe and use up whatever veggies you have on hand OR whatever veggies you usually get on your pizza, we opt for mushroom, bell peppers, and olives.
How to Make This Recipe
Step 1: Heat a large nonstick skillet over medium high heat and add in the olive oil. Add the onion and cook for 3-4 minutes until softened, then add in the garlic and oregano. Saute for 30 seconds. Add in the bell peppers and mushrooms and cook until softened and lightly browned.
Step 2: Transfer the cooked vegetables to a large bowl and add in the olives, quinoa, sauce, 1 cup of mozzarella, parmesan and salt and pepper, to taste.
Step 3: Pack into the baking dish and top with the remaining 1/2 cup mozzarella cheese.
Step 4: Bake for 20-25 minutes until golden brown around the edges and bubbling. Top with basil leaves, if desired, as garnish.
This easy pizza casserole is super flexible and modifiable for all dietary preferences. If you’re vegan, you can easily use vegan cheese. If you’re not vegetarian, you can throw some pepperoni, chicken or sausage into the mix.
This easy pizza casserole lasts in the fridge for about 3-4 days.
Totally, I would just omit the cheese before freezing it and then add the cheese before you plan on eating it when it’s thawed
You can use rice or pasta.
Yes you can omit the quinoa and add more ground meat and veggies to make it more satiating.
More Recipes You Might Like
If you need more pizza-themed recipes in your life, then you’re going to love these recipes on the blog!
Now I want to know, what are your favourite pizza toppings?
Easy Pizza Casserole with Quinoa (Vegetarian)
- 1 tbsp extra virgin olive oil
- 2 cloves garlic minced
- 1/2 onion diced
- 1 tsp dried oregano
- 1 lb mushrooms thinly sliced
- 1/2 yellow bell pepper sliced and cut in half
- 1/2 orange bell pepper sliced and cut in half
- 1/2 red bell pepper sliced and cut in half
- 1/4 cup black olives sliced
- 3 1/2 cups cooked quinoa about 1 cup raw
- 1 ½ cup tomato pasta sauce
- 1 1/2 cups shredded mozzarella cheese divided
- 1/4 cup grated parmesan cheese
- Salt and pepper to taste
- 1/4 cup basil leaves for garnish
- Preheat oven to 375 F and lightly grease a 9 inch square dish.
- Heat a large nonstick skillet over medium high heat and add in the olive oil. Add the onion and cook for 3-4 minutes until softened, then add in the garlic and oregano. Saute for 30 seconds.
- Add in the bell peppers and mushrooms and cook until softened and lightly browned.
- Transfer the cooked vegetables to a large bowl and add in the olives, quinoa, sauce, 1 cup of mozzarella, parmesan and salt and pepper, to taste.
- Pack into the baking dish and top with the remaining 1/2 cup mozzarella cheese. Bake for 20-25 minutes until golden brown around the edges and bubbling. Top with basil leaves, if desired, as garnish.
Have you tried making easy pizza casserole? Let me know your thoughts down in the comments below!
Updated on June 8th, 2021
Abbey Sharp is a Registered Dietitian (RD), regulated by the Ontario College of Dietitians. She is a mom, YouTuber, Blogger, award winning cookbook author, media coach specializing in food and nutrition influencers, and a frequent contributor to national publications like Healthline and on national broadcast TV shows.