How to Make Creamy Butternut Squash Casserole - A Step-by-Step Guide

When the weather starts getting colder and the leaves begin to change, there's nothing better than cozying up with a warm and comforting casserole. And one of our favorite dishes to make during the fall season is a creamy butternut squash casserole. This dish is packed with autumn flavors and will definitely be a hit at your next family gathering or potluck.

Butternut squash is a versatile and delicious vegetable that's perfect for roasting and pureeing. When combined with a creamy an...

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Ingredients

  • 2 tablespoons olive oil
  • 2 small onions, chopped
  • 1 (2 1/2 pound) butternut squash - peeled, seeded, and cubed
  • 6 cloves garlic, crushed
  • ¼ teaspoon salt
  • 1 tablespoon water, or as needed (Optional)
  • 3 eggs
  • ¾ cup sour cream
  • 1 cup grated Parmesan cheese
  • ⅓ cup chopped fresh basil
  • ¼ teaspoon ground black pepper
  • ½ (8 ounce) package coarsely shredded mozzarella cheese

Information

  • Prep Time: 20 mins
  • Cook Time: 50 mins
  • Total Time: 1 hr 10 mins
  • Servings: 4
  • Yield: 4 servings

  • Preheat oven to 425 degrees F (220 degrees C). Grease a 9x13-inch casserole dish.
  • Heat olive oil in a skillet over medium heat; cook and stir onions in the hot oil until softened, about 10 minutes. Stir in squash and garlic; season with salt. Cook squash mixture, stirring occasionally, until squash is slightly tender, about 10 minutes. Add water if mixture gets too dry. Transfer squash mixture to the prepared casserole dish.
  • Lightly whisk eggs in a bowl; stir in sour cream, Parmesan cheese, basil, and black pepper. Pour egg mixture over squash mixture; top with mozzarella cheese.
  • Bake in the preheated oven until squash is tender and mozzarella cheese is bubbling, about 30 minutes.
  • Nutrition

    512 cal.

    • Total Fat: 30g
    • Saturated Fat: 14g
    • Cholesterol: 194mg
    • Sodium: 714mg
    • Total Carbohydrate: 42g
    • Dietary Fiber: 7g
    • Total Sugars: 9g
    • Protein: 24g
    • Vitamin C: 65mg
    • Calcium: 670mg
    • Iron: 3mg
    • Potassium: 1241mg