Easy Steak Sandwich

2 tbsp. butter or margarine
1/4 medium onion, sliced
4 large fresh mushrooms, sliced
1/4 green bell pepper, sliced into long strips
1 (1/2 lb.) well-marbled beef steak, sliced as thinly as possible
3 tbsp. chopped pickled hot peppers
1 tsp. hot pepper sauce
2 slices sharp Cheddar cheese
to taste: salt and pepper
1/3 French baguette, cut in half lengthwise

      Melt 1 tbsp. butter in a large skillet over medium heat.  Add onion; cook and stir until tender.  Push onion to side of pan, and add mushrooms.  Cook and stir until softened, then add bell pepper and cook just until tender, about 3 minutes.  Remove from pan with a slotted spoon, set aside.  Add remaining butter to skillet.  No need to clean pan, just let it heat a little bit.  Place steak in skillet, along with pickled peppers.  Season with salt and pepper.  The steak cooks really fast, just a couple of minutes.  Once steak is mostly browned,  return onion and pepper to pan.  Cook until heated through.  Turn off the heat, place slices of cheese over top of pile so they melt.  Scoop whole pile into awaiting bread, making sure to pour some juices onto that  wonderful sandwich!