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–+ servings
Crockpot filled with a baked dish topped with melted cheese, sliced pepperoni, and chopped parsley. A small bowl of shredded cheese and scattered parsley are nearby on a striped cloth and wooden surface.

Slow Cooker Supreme Pizza Quinoa

This Slow Cooker Supreme Pizza Quinoa Casserole brings all the flavors of pizza night into an easy, comforting crock pot meal. It’s filling, family-friendly, and perfect for busy weeknights—or anytime you want pizza without turning on the oven.
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Prep Time 5 minutes
Cook Time 4 hours
Total Time 4 hours 5 minutes
Servings: 6 servings

Equipment

Ingredients
  

  • 1½ cups uncooked quinoa rinsed well
  • 3 cups marinara sauce
  • 2 cups water or chicken broth
  • 1½ cups shredded mozzarella cheese divided
  • ½ cup pepperoni slices
  • 1 cup bell peppers diced
  • ½ cup onion diced
  • 1 cup mushrooms sliced
  • 1½ cups fresh spinach chopped
  • 1 tsp Italian seasoning
  • ½ tsp garlic powder
  • ½ tsp salt
  • ¼ tsp black pepper
  • Optional: red pepper flakes or grated Parmesan for serving

Method
 

  1. Lightly spray the inside of your crock pot with nonstick spray.
  2. Add uncooked quinoa (be sure to rinse it first until the water runs clear), marinara sauce, and broth directly to the slow cooker. Stir in Italian seasoning, garlic powder, salt, and pepper.
  3. Add bell peppers, onion, mushrooms, and spinach(or your favorite toppings). Gently stir until evenly distributed.
  4. Cook on LOW 4 hours or HIGH 2 hours (I recommend cooking on low for the best texture) The quinoa should be tender and most of the liquid absorbed. Stir once halfway through if possible.
  5. About 15–20 minutes before serving, stir in ½ cup of mozzarella. Sprinkle remaining mozzarella and pepperoni on top.
  6. Cover and cook until cheese is melted. Let rest 5 minutes before serving.

Nutrition

Calories: 336kcalCarbohydrates: 38gProtein: 17gFat: 14gSaturated Fat: 6gPolyunsaturated Fat: 2gMonounsaturated Fat: 5gTrans Fat: 0.2gCholesterol: 31mgSodium: 1109mgPotassium: 823mgFiber: 6gSugar: 7gVitamin A: 2213IUVitamin C: 44mgCalcium: 199mgIron: 4mg

Notes

Refrigerator

  • Store leftovers in an airtight container for up to 4 days
  • Reheat in the microwave or oven

Freezer

  • Cool completely
  • Transfer to freezer-safe containers
  • Freeze for up to 3 months
To reheat:
Thaw overnight in the fridge and warm in the microwave or oven until heated through.
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