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A casserole dish with a spoon and a sprig of sage.
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4.45 from 9 votes

Butternut Squash Casserole Recipe

This winter squash casserole is herby, creamy, cozy, and all kinds of delicious. It's the perfect side dish when you need something comforting.
Prep Time20 minutes
Cook Time45 minutes
Total Time1 hour 5 minutes
Course: Side Dish
Cuisine: American
Servings: 8
Author: Becky Hardin

Equipment

  • 9x13 Baking Pan

Ingredients

  • 4 tbsp unsalted butter divided (½ stick)
  • ½ onion chopped
  • 1 tsp kosher salt
  • tsp ground black pepper
  • 2 cloves garlic minced
  • tsp ground nutmeg
  • 1 tsp chopped fresh sage
  • 1 cup heavy cream
  • 2½-3 lbs. butternut squash peeled and sliced into thin pieces
  • cups freshly shredded white cheddar cheese divided in thirds
  • ½ cup panko breadcrumbs

Instructions

  • Preheat oven to 375°F.
  • Heat 2 tablespoons of butter in a skillet set over medium heat.
    4 tbsp unsalted butter
  • Add in the onion, salt, and pepper, sautéing until softened.
    ½ onion, 1 tsp kosher salt, ⅛ tsp ground black pepper
  • Stir in the garlic, nutmeg, and chopped sage and cook for another minute.
    2 cloves garlic, ⅛ tsp ground nutmeg, 1 tsp chopped fresh sage
  • Stir in the heavy cream, and let the mixture simmer for a couple minutes. Taste, and add salt if needed.
    1 cup heavy cream
  • Layer half of the butternut squash at the bottom of a greased casserole dish, followed by ⅓ of the cream mixture, followed by ½ cup of cheese. Repeat this process 2 more times, but leave the remaining ½ cup of cheese off.
    2½-3 lbs. butternut squash, 1½ cups freshly shredded white cheddar cheese
  • Cover the casserole dish with foil, and bake for 30 minutes
  • Melt the remaining 2 tablespoons of butter and combine it with the breadcrumbs.
    ½ cup panko breadcrumbs
  • Remove the foil, and sprinkle the remaining ½ cup of cheese and buttered breadcrumbs over the casserole.
  • Return the casserole to the oven, and bake uncovered for an additional 10-15 minutes, or until the top is golden brown.

Nutrition

Calories: 322kcal | Carbohydrates: 22g | Protein: 8g | Fat: 24g | Saturated Fat: 15g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 0.2g | Cholesterol: 70mg | Sodium: 472mg | Potassium: 571mg | Fiber: 3g | Sugar: 5g | Vitamin A: 15893IU | Vitamin C: 31mg | Calcium: 252mg | Iron: 1mg