Million Dollar Spaghetti Casserole

Ingredients:

• 1 pound (16 oz) spaghetti
• 1 pound ground beef
• 1 medium onion, finely chopped
• 3 cloves garlic, minced
• 1 can (28 oz) crushed tomatoes
• 1 can (14 oz) diced tomatoes, drained
• 1 can (6 oz) tomato paste
• 1 teaspoon dried oregano
• 1 teaspoon dried basil
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon red pepper flakes (optional, for a bit of heat)
• 1 cup ricotta cheese
• 1/2 cup sour cream
• 2 cups shredded mozzarella cheese
• 1 cup grated Parmesan cheese
• Fresh basil or parsley for garnish (optional)

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