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Broccoli and cheese bake in a white rectangular dish, with melted cheese and browned edges.
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4.48 from 17 votes

Quinoa Broccoli and Cheese Casserole

Packed with protein and made with just simple ingredients, this quinoa broccoli and cheese casserole is the perfect vegetarian dish for busy weeknights. 
Prep Time15 minutes
Cook Time50 minutes
Total Time1 hour 5 minutes
Course: Main Meal
Cuisine: Vegetarian
Keyword: broccoli and cheese casserole, cheesy broccoli casserole, quinoa casserole
Servings: 4
Author: Lee Funke

Ingredients

  • 1.5 cups quinoa uncooked
  • 1/2 large yellow onion diced
  • 6 cups chopped broccoli florets
  • 2 teaspoons olive oil
  • 3 cloves garlic minced
  • 1 cup vegetable broth
  • 1.5 cups 2% milk or any kind of milk
  • 6 oz. sharp white cheddar cheese freshly grated
  • 1/2 teaspoon sea salt

Topping

  • ¼ cup hemp hearts
  • 3 tablespoons panko bread crumbs
  • 2 oz. sharp white cheddar cheese freshly grated
  • 1 teaspoon olive oil

Instructions

  • Preheat oven to 375ºF and spray a casserole dish with olive oil.
  • Place quinoa, onion, and broccoli florets on the bottom of your casserole dish. Set aside.
    A baking dish filled with raw broccoli florets ready for cooking.
  • Heat a saucepan over medium/high heat. Add olive oil and garlic. When the garlic is fragrant, add the milk, broth, and salt into a medium saucepan. Gently whisk until the liquid is hot.
    A hand pours milk from a measuring cup into a saucepan containing small food pieces, on a textured surface.
  • Remove the pan from the heat and slowly add 6 oz. of grated cheese and whisk until the cheese dissolves into the mixture.
    A pot containing a creamy liquid mixture with shredded cheese being whisked in.
  • Pour liquid on top of the ingredients in a casserole dish and stir to combine.
    A white baking dish filled with fresh broccoli florets on a light textured background.
  • Cover the casserole dish and place it in the oven at 375ºF for 30 minutes. Remove and stir.
  • Bake for an additional 20 minutes, uncovered.
    A white baking dish with broccoli casserole, featuring browned edges and a creamy texture.
  • While baking, add all of the ingredients for the topping to a bowl and mix until a crumble forms.
  • Spread the topping over the top of the casserole and broil until the topping turns golden brown.
  • Remove from the oven and let it rest for 5 minutes before serving.
    A baked casserole in a white dish with melted cheese and broccoli, accompanied by bowls of grated cheese and breadcrumbs. A striped towel and two spoons are nearby.

Video

Notes

  • This recipe was updated in January 2025. Find the original recipe HERE.
  • Any color of quinoa will work for this recipe. 
  • We used 2% dairy milk, but you can use any unflavored milk. 
  • If you make any changes to this recipe, it will turn out differently.

Nutrition

Calories: 685kcal | Carbohydrates: 65g | Protein: 35g | Fat: 33g | Fiber: 9g | Sugar: 8g