Butternut squash casserole is a comforting, nutritious, and versatile dish that can be the star of your table. With its rich, creamy texture and sweet, nutty flavor, it's perfect for fall or winter meals and an excellent option for those on a vegetarian diet or looking for a healthy side. This comprehensive guide will help you craft the perfect butternut squash casserole that will wow any dinner crowd.

butternut squash casserole

Ingredients for Success

Before you can start cooking, you'll need to gather all the necessary ingredients. Here's what you'll need:

For the Squash:

  • 1 large butternut squash
  • 2 tablespoons of olive oil
  • Salt and pepper to taste
  • 1 teaspoon of ground cinnamon

For the Casserole:

  • 1 onion, finely chopped
  • 2 cloves of garlic, minced
  • 1 cup of vegetable broth
  • 1 cup of heavy cream or coconut milk for a dairy-free option
  • 1 cup of grated Parmesan or nutritional yeast for a dairy-free option
  • 1/2 cup of breadcrumbs (gluten-free if needed)
  • 2 tablespoons of butter or dairy-free spread
  • Fresh herbs, such as thyme or sage, for garnish

Preparing the Butternut Squash

The first step to making a delicious butternut squash casserole is preparing the star ingredient.

Peeling and Cutting

  1. Start by peeling the squash with a sharp vegetable peeler.
  2. Cut it in half lengthwise and remove the seeds using a spoon.
  3. Cut the squash into 1-inch cubes.

Roasting the Squash

  1. Preheat your oven to 400°F (200°C).
  2. Toss the cubed squash with olive oil, salt, pepper, and cinnamon.
  3. Spread the seasoned squash on a baking sheet and roast for about 30 minutes or until tender and slightly caramelized.

Sautéing the Squash

  1. Heat olive oil in a large skillet over medium heat.
  2. Add the squash cubes and cook until they are tender and browned, about 10-15 minutes.
  3. Stir occasionally to ensure even cooking.

Layering Your Casserole

Once your squash is cooked, it's time to assemble the casserole.

Making the Filling

  1. In a separate skillet, sauté the onion and garlic until soft and fragrant.
  2. Add the roasted or sautéed squash to the onion mixture.
  3. Pour in the vegetable broth and allow the mixture to simmer for a few minutes to blend the flavors.
  4. Stir in the cream or coconut milk and cook for another 2 minutes.
  5. Remove the mixture from the heat and stir in the grated Parmesan or nutritional yeast.

Building the Casserole

  1. Preheat your oven to 350°F (175°C).
  2. Butter a baking dish and layer the bottom with half of the squash mixture.
  3. Sprinkle half of the breadcrumbs on top of the squash.
  4. Repeat with the remaining squash mixture and top with the rest of the breadcrumbs.

Baking the Casserole

Place your assembled casserole in the preheated oven and bake for 25-30 minutes, or until the top is golden brown and the casserole is bubbling around the edges.

Checking for Doneness

You can test the doneness by inserting a knife into the center of the casserole. If it comes out clean, the casserole is ready.

Serving Your Butternut Squash Casserole

Now that your casserole is cooked to perfection, it's ready to serve.


Garnish the top of the casserole with fresh herbs, such as thyme or sage, for a beautiful and aromatic finish.


Serve the casserole alongside your favorite proteins, like grilled chicken or a juicy steak. It also pairs well with simple green salads or roasted vegetables for a complete meal.

Nutritional Information

Butternut squash is high in fiber, vitamins A and C, and several beneficial antioxidants. This casserole variation provides a warm, hearty dish packed with vitamins and minerals.


A butternut squash casserole is not just a dish; it's an experience. The comforting flavors and creamy texture make it a favorite among both home cooks and dining guests. With this guide, you can master the art of making this delicious casserole and introduce a new standby to your seasonal menu. Happy cooking!

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