Spaghetti Squash Casserole

Bahan-bahan (6 porsi)

• 1 spaghetti squash (cooked)
• 1 pound lean ground beef
• 1 onion (diced)
• 2 cloves garlic (minced)
• 15 ounces canned diced tomatoes (1 can)
• 1 tablespoon tomato paste
• 1 cup marinara sauce (or pasta sauce)
• 1 teaspoon Italian seasoning
• 1 ½ cups shredded mozzarella cheese