Italian Meatball Sub

Instructions

1. Step 1: Preheat oven to 400°F (200°C).
2. Step 2: In a large bowl, combine ground beef, breadcrumbs, egg, Parmesan cheese, parsley, garlic, salt, and pepper. Mix well with your hands until just combined.
3. Step 3: Use your hands to shape the mixture into meatballs, about 1 1/2 inches (3.8 cm) in diameter. Place the meatballs on a baking sheet lined with parchment paper.
4. Step 4: Bake the meatballs in the preheated oven for 18-20 minutes, or until cooked through.
5. Step 5: While the meatballs are baking, heat the marinara sauce in a large saucepan over medium heat.
6. Step 6: Once the meatballs are done, add them to the marinara sauce and simmer for a few minutes to coat.
7. Step 7: Slice the sub rolls in half and place them on a baking sheet.
8. Step 8: Assemble the subs by placing 3-4 meatballs on each roll, followed by a spoonful of marinara sauce and a slice of mozzarella cheese.
9. Step 9: Place the subs under the broiler for 2-3 minutes, or until the cheese is melted and bubbly.