Homemade meatball subs

Ingredients
▢16 frozen meatballs or homemade below
▢2 cups pasta sauce or marinara sauce
▢4 hoagie rolls
▢4 tablespoons garlic butter
▢1 cup shredded provolone or mozzarella cheese
Meatballs (or use frozen meatballs if preferred)
▢1 pound lean ground beef
▢1 egg
▢½ cup seasoned bread crumbs
▢½ teaspoon Italian seasoning
▢½ teaspoon onion powder
▢salt and pepper to taste
Instructions
Prepare meatballs as directed on package or for homemade meatballs, combine all meatball ingredients.
Roll into 1″ balls and place on a parchment lined pan. Bake at 350°F for 20 minutes or until cooked through.
Place cooked meatballs in a saucepan with pasta sauce and simmer covered 10 minutes.
Meanwhile, spread garlic butter inside each roll. Heat broiler and broil rolls until golden, about 3 minutes.
Arrange rolls in a 9×13 baking dish. Place 4 meatballs in each roll and top with a little bit of sauce and cheese.
Broil 2-3 minutes or until cheese is melted. Serve with additional sauce for dipping if desired.