Heat a skillet over medium-high heat. Cook the beef, shredding as little as possible, until brown and about the size of a pea, 5 to 7 minutes. Add Worcestershire sauce, salt and pepper.Mix gently and remove the mixture from the pan.
Melt the butter in a pan. add onions and peppers; cook and stir until brown, 5 to 7 minutes. Return the beef mixture to the pan and stir. Let the filling cool while you prepare the buns.
Place the spring roll wrappers on a flat surface. Place half a slice of American cheese on top of each. Place 3 tablespoons of filling on each spring roll. Pull the bottom left corner over the filling and fold both sides toward the center. Gradually moisten the edges with water. wrap well.
Heat about an inch of oil in a large saucepan over medium-high heat.Add 3 to 4 egg rolls at a time and fry until browned, 3 to 4 minutes. Repeat with remaining egg rolls.
Tips for the Best Philly Egg Rolls:
Steak– Rib eye or flank steak can also be used. Even ground hamburger works. Cut your steak into bite sized pieces for easier eating and filling.