Steak Sandwiches with Peppers and Onion

Here's a great idea if you happen to have some leftover flank steak like I did!

1/4 lb leftover flank steak, sliced thinly
1/4 of a red onion, sliced thinly
1 green pepper, sliced thinly
1 poblano or Cubanelle pepper thinly sliced
salt and pepper
submarine rolls
shredded mozzarella

Heat oven to 350
Heat some olive oil in a frying pan and sauté peppers, and onion, season with salt and pepper--cook about 8 minutes or so until the peppers are soft and browning. Transfer to bowl and keep warm. Toss the cooked flank steak into the hot pan and warm up the meat.
Put rolls on baking sheet and pile on meat and then pepper mixture and then cheese. Warm in oven for about five minutes until cheese melts.


We also added some jarred chopped chili peppers but we like spicy!!