Spaghetti Squash Au Gratin Recipe - (4.4/5)

Ingredients

• 1 medium spaghetti squash
• 3 tablespoons butter
• 1 small yellow onion, very thinly sliced
• 1 teaspoon red pepper flakes
• 1/4 teaspoon garlic salt
• Salt and pepper to taste
• 3/4 cup sour cream
• 1 cup shredded cheddar cheese