Ingredients: - 1 pound ground beef - 1/2 cup breadcrumbs - 1/4 cup grated Parmesan cheese - 1/4 cup chopped fresh parsley - 1/4 cup milk - 1 egg - 2 cloves garlic, minced - 1 teaspoon dried oregano - 1/2 teaspoon salt - 1/4 teaspoon black pepper - 4 sub rolls - 1 cup marinara sauce - 1 cup shredded mozzarella cheese - 1/4 teaspoon red pepper flakes (adjust to taste) Steps: 1. Preheat the oven to 375°F (190°C). 2. In a large bowl, combine the ground beef, breadcrumbs, Parmesan cheese, parsley, milk, egg, garlic, oregano, salt, black pepper, and red pepper flakes. Mix well until all the ingredients are evenly incorporated. 3. Shape the mixture into meatballs, about 1 inch in diameter. 4. Place the meatballs on a baking sheet and bake for 20-25 minutes, or until cooked through. 5. While the meatballs are baking, heat the marinara sauce in a saucepan over medium heat. 6. Once the meatballs are cooked, remove them from the oven and set aside. 7. Slice the sub rolls in half length... Leer más