Scrumptious Steak Sammy Recipe

Season steaks with salt and pepper; allow steaks to come to room temperature about 15 minutes.

Heat oil in a skillet over medium heat until very hot; lay steaks in pan and cook until they are beginning to firm and are hot and slightly pink in the center about 5 minutes per side. An instant-read thermometer inserted into the center should read 140 degrees F (60 degrees C). Transfer steaks to a warm plate; cover and let rest about 10 minutes.

Melt butter in same pan over medium heat; stir in mushrooms and peppers. Season with salt and pepper; cook and stir until tender about 5 minutes.

Set oven rack about 6 inches from the heat source and preheat the oven's broiler.

Toast buns under the broiler until golden about 2 minutes. Divide mozzarella cheese over bottom halves of buns; return to broiler until cheese melts about 2 minutes.

Slice steak very thinly. Pile steak slices over cheese-topped bun halves; top with mushrooms and peppers. Spread mayonnaise on top halves of buns; place over sandwich.