Creamy Butternut Squash Casserole

Bake butternut squash into a creamy casserole topped with mozzarella cheese for a hearty side or vegetarian main dish.

• Preparation Time: 20 mins
• Cooking Time: 50 mins
• Total Time: 1 hr 10 mins
• Calories: 512 Calories

Ingredients

• 3 eggs
• 2 tablespoons olive oil
• 1 cup grated Parmesan cheese
• 6 cloves garlic, crushed
• 2 small onions, chopped
• 1 tablespoon water, or as needed
• 1 (2 1/2 pound) butternut squash - peeled, seeded, and cubed
• 0.25 teaspoon ground black pepper
• 0.25 teaspoon salt
• 0.75 cup sour cream
• 0.33333334326744 cup chopped fresh basil
• 0.5 (8 ounce) package coarsely shredded mozzarella cheese

Recipe Instructions

Step 1

Preheat oven to 425 degrees F (220 degrees C). Grease a 9x13-inch casserole dish.

Step 2

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.

Step 3

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.

Step 4

Bake in the preheated oven until squash is tender and mozzarella cheese is bubbling, about 30 minutes.