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Spinach Alfredo Zucchini Quinoa Bean Casserole

One-pan dump and bake white bean quinoa casserole is loaded with vegetables, a comforting sauce and sprinkled with cheese, making it a comforting and satisfying meal everyone will love!
Prep Time 10 minutes
Cook Time 1 hour
Course Main Course, Side Dish
Cuisine High Protein, Italian, Kid-Friendly
Servings 6
Calories 401 kcal

Equipment

  • 13x9-inch baking dish
  • Aluminum foil
  • Wooden spoon or silicone spatula

Ingredients
  

  • 2 large or 3 medium zucchini quartered
  • 1 cup uncooked quinoa rinsed
  • 1/2 cup uncooked jasmine or basmati rice or more quinoa
  • 400 g 14 oz can cannellini beans rinsed (or chickpeas)
  • 1 cup cooked cauliflower rice fresh or frozen works
  • 500 g 15.5 oz jar spinach Alfredo pasta sauce (I used Sonoma Gourmet for gluten-free)
  • 1 1/2 cups water or vegetable broth use chicken bone broth for extra protein
  • 1/2 1 tsp garlic powder
  • 1/2 tsp sea salt
  • 1/4 tsp ground black pepper
  • 1 cup grated parmesan or swap for cheddar/mozzarella
  • Option for Higher Protein see notes, not included in nutrition

Instructions
 

  • Preheat your oven to 190°C / 375°F.
  • In a 13x9-inch baking dish, toss in the zucchini, quinoa, rice, beans, cauliflower rice, spinach Alfredo sauce, water/broth, garlic powder, salt, and pepper. Stir to combine.
  • Cover tightly with foil or an oven-safe lid.
  • Bake for 35-40 minutes until the quinoa is mostly cooked and the liquid is simmering. Remove from oven and stir.
  • Bake uncovered for another 20-25 minutes. Sprinkle with parmesan and return to the oven for a few minutes to melt the cheese.
  • Serve hot with extra parmesan and enjoy!

Notes

Nutrition (per serving): 401 calories, 15.5g fat, 48.9g carbs, 8g fiber, 0g sugars, 16.1g protein

Pro Tips

  • Make It Yours: Swap zucchini for broccoli or mushrooms, or use chickpeas instead of cannellini beans. Serve with a lemon squeeze for a fresh twist.
  • Storage: Keep leftovers in an airtight container in the fridge for 2–3 days. Reheat in the oven or microwave.
  • Freezing: If freezing, skip the cheese topping until reheating.
  • Higher Protein Boost: Add 1 1/2 cups cooked shredded chicken or crumbled tofu for a protein boost (not included in nutrition). 
Keyword Quick and Easy