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Vegetarian Butternut Squash Quinoa Casserole Recipe


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3.8 from 11 reviews

  • Author: Molly
  • Total Time: 2 hours 11 minutes
  • Yield: 6 servings
  • Diet: Gluten Free

Description

This Vegetarian Butternut Squash Quinoa Casserole is a healthy and flavorful main course combining roasted butternut squash with protein-packed quinoa, fresh herbs, and gooey melted cheese. Perfect for family dinners, this gluten-free casserole delivers a comforting and nutritious meal with warm autumnal flavors.


Ingredients

Roasted Butternut Squash

  • 4 cups butternut squash, peeled and diced
  • 1 teaspoon olive oil
  • Sea salt and black pepper, to taste

Quinoa Mixture

  • 1 teaspoon olive oil
  • 3 shallots, minced
  • 1 tablespoon fresh sage
  • 6 cloves garlic, minced
  • 1 cup quinoa, rinsed
  • 1 ½ cups vegetable broth or chicken broth
  • 1 ½ teaspoon sea salt
  • ½ teaspoon black pepper
  • ¼ teaspoon cayenne pepper

Binding and Topping

  • 2 eggs, beaten (optional)
  • ½ cup milk (dairy, soy, or almond)
  • 1 cup Gruyere or vegan cheese, shredded


Instructions

  1. Roast the Butternut Squash: Preheat the oven to 350°F (175°C). Spray a large baking sheet with olive oil. Spread the diced butternut squash evenly on the sheet and season with salt and pepper. Roast for 15 minutes until tender and slightly caramelized.
  2. Sauté Aromatics: In a medium saucepan, heat olive oil over medium heat. Add minced shallots and fresh sage and cook for about 8 minutes until the shallots soften and become translucent.
  3. Add Garlic and Quinoa: Stir in the minced garlic and cook for 30 seconds until fragrant. Add the rinsed quinoa and roasted butternut squash to the pan and stir for one minute to combine.
  4. Simmer with Broth and Spices: Pour in the vegetable or chicken broth along with sea salt, black pepper, and cayenne pepper. Bring the mixture to a gentle simmer, then cover and reduce heat to low. Cook for 25 minutes or until the quinoa absorbs most of the liquid and is tender.
  5. Assemble the Casserole: Transfer the quinoa and squash mixture into an oven-safe baking dish. In a small bowl, whisk together the beaten eggs and milk, then pour evenly over the quinoa mixture. Sprinkle the shredded Gruyere or vegan cheese on top.
  6. Bake and Broil: Place the casserole in the preheated oven and bake at 350°F (175°C) for 30 minutes, until the top is set and golden. If desired, broil for an additional 2 minutes to brown the cheese topping for a crispy finish.

Notes

  • You can substitute chicken broth for vegetable broth if not following a vegetarian diet.
  • The eggs are optional; omit them to make this recipe vegan if using plant-based milk and cheese.
  • Feel free to use vegan cheese or leave out cheese to reduce saturated fat.
  • Make sure to rinse quinoa thoroughly to remove any bitterness before cooking.
  • Adjust cayenne pepper to your spice preference or omit for a milder flavor.
  • Leftovers can be refrigerated for up to 3 days and reheated in the oven.
  • Prep Time: 20 minutes
  • Cook Time: 1 hour 51 minutes
  • Category: Main Course
  • Method: Baking
  • Cuisine: American