Meatball Pasta Bake

Bahan-bahan (8 porsi)

• 1 pound lean ground beef
• ⅓ cup fresh bread crumbs
• 1 tablespoons milk
• ½ teaspoon salt
• 1 teaspoon Worcestershire sauce
• ½ teaspoon black pepper
• ¼ cup finely diced onion
• 2 tablespoons chopped fresh parsley
• 1 egg
• 8 ounces spaghetti
• 1 tablespoon olive oil
• 2 cups shredded mozzarella cheese (divided)
• ½ cup shredded Parmesan cheese (divided)
• 1 large egg (slightly beaten)
• 2 tablespoons chopped fresh parsley
• 28 ounces pasta sauce (jarred or homemade)