The substitution of beef for turkey in this meatball sub is so seamless and delicious, you're going to wonder why you didn't start doing it a while ago. With all the same toppings that make a sub great, you won't even notice the subtle difference in taste, which is a small sacrifice for the immense nutritional benefit.
Combine the turkey breast, egg, and breadcrumbs.
Bake at 375˚ until meatballs are golden brown.
Sautée the green pepper, onions, and red sauce in a pan.
Assemble on a whole wheat sub.