Heat a skillet or griddle over medium-high heat
Add a little oil
Cook ground beef in the skillet
Break up the beef with a spatula as it cooks
Season with salt, black pepper, garlic powder, and onion powder
Cook until the beef is browned and fully cooked
Push the beef into a pile or spread it out in a thin layer
Place slices of cheese on top of the hot beef
Let the cheese melt
Chop and mix the beef and melted cheese together with a spatula
Split a hero roll or hoagie roll
Toast the roll if desired
Add lettuce, tomato, and condiments if desired
Fill the roll with the chopped beef and cheese mixture
Serve immediately