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Butternut Squash Casserole – Creamy, Sweet & Comfortingly Delicious!

Butternut Squash Casserole


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  • Author: Michael William
  • Total Time: 1 hour 5 minutes
  • Yield: 6 servings 1x
  • Diet: Vegetarian

Description

Butternut Squash Casserole is a cozy comfort dish, rich in flavor and perfect for family gatherings or weeknight dinners.


Ingredients

Scale
  • 4 cups cubed butternut squash
  • 1 medium yellow onion, chopped
  • 2 cloves garlic, minced
  • 2 tablespoons olive oil
  • 1 tablespoon butter
  • 1 tablespoon fresh sage, chopped (plus more for garnish)
  • 1/4 teaspoon ground nutmeg
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 cup shredded Gruyère or mozzarella cheese, divided
  • 1/2 cup breadcrumbs (optional)
  • 1/2 pound cooked sausage (optional)

Instructions

  1. Preheat oven to 400°F (200°C).
  2. Peel and cube the butternut squash. Toss with olive oil, salt, and pepper. Spread on a baking sheet and roast for 25–30 minutes, until tender and slightly caramelized.
  3. While squash roasts, sauté chopped onion in butter and olive oil until soft and golden. Add minced garlic and sage, and cook for 1–2 minutes more.
  4. In a large bowl, combine roasted squash, sautéed aromatics, nutmeg, and half the cheese. Stir well. If using sausage, mix it in.
  5. Transfer mixture to a greased casserole dish. Top with remaining cheese and breadcrumbs (if using).
  6. Bake at 375°F (190°C) for 20–25 minutes, until cheese is melted and top is golden.
  7. Let rest for 5–10 minutes before serving. Garnish with fresh sage leaves if desired.

Notes

  • For extra crispiness, broil the casserole for 2–3 minutes at the end of baking.
  • You can make this casserole a day ahead — just assemble and refrigerate before baking.
  • Swap the cheese with a plant-based option to make it vegan-friendly.
  • Prep Time: 15 minutes
  • Cook Time: 50 minutes
  • Category: Main Dish
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 280
  • Sugar: 4g
  • Sodium: 400mg
  • Fat: 15g
  • Saturated Fat: 7g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 30g
  • Fiber: 4g
  • Protein: 10g
  • Cholesterol: 30mg