Beef Spaghetti Casserole

Bahan-bahan (8 porsi)

• 1 pound spaghetti
• 2 pounds 90% lean ground beef
• 1 large onion, (diced)
• 6 medium garlic cloves, (minced)
• 8 ounces cream cheese, (at room temperature)
• 4 cups marinara sauce
• ½ cup sour cream
• 2 teaspoons dried Italian seasoning
• 1½ teaspoons granulated white sugar
• 1 teaspoon salt
• ½ teaspoon freshly ground black pepper
• 2 cups shredded Mozzarella cheese, (divided)
• 1 cup grated Parmesan cheese, (divided)
• 1 tablespoon chopped fresh parsley