A delightful twist on the classic meatball sandwich, featuring enhanced flavors and textures.
Preheat your oven to 350°F (175°C).
Preheating ensures even cooking from the start.
In a large mixing bowl, combine the ground beef, onion, Parmesan cheese, egg, parsley, oregano, pepper, salt, and garlic. Mix until well combined.
Avoid overmixing to keep the meatballs tender.
Shape the mixture into 1 1/2-inch balls and place them on a greased baking sheet.
Use a cookie scoop for uniform meatballs.
Bake the meatballs in the preheated oven for 20 minutes, or until firm and cooked through.
Check for doneness by cutting into one meatball.
While the meatballs bake, heat the marinara sauce in a saucepan over medium heat.
Stir occasionally to prevent sticking.
Add the baked meatballs to the saucepan and simmer for 15 minutes, allowing the flavors to meld.
Simmering enhances the flavor of the sauce.
Slice the sub rolls and toast them lightly.
Toasting prevents the rolls from becoming soggy.
Place 4-5 meatballs onto each roll, spooning sauce over the top.
Serve immediately for the best taste.