Slice, dice, or shred your leftover meat. Place your sliced veggies in a pot with a little olive oil. Simmer till tender, add meat. Simmer a few minutes longer. I like to add garlic granuales & blk pepper and also a little A-1 sauce.
One a griddle or in a skillet, spray one side of flour tort. with spray oil. Place that side down, layer american cheese, meat, shredded cheese. Fold in half. Brown bottom side then flip & brown top side. Serve with rice & salsa.