Million Dollar Baked Spaghetti

Bahan-bahan (5 porsi)

• 8 ounces spaghetti
• 16 ounces ground beef
• 1 tablespoon olive oil
• ½ medium sweet onion, (finely chopped)
• 3 medium garlic cloves, (minced)
• 24 ounces jarred marinara sauce
• 4 ounces ricotta cheese
• 4 ounces cream cheese
• ½ cup sour cream
• salt and pepper, (to taste)
• 1½ cups shredded mozzarella cheese
• ½ cup grated Parmesan cheese
• chopped fresh basil, (for garnish)