Philly Cheesesteak Sandwich

Cheesesteak
1.5 lb ribeye steak thinly sliced
1 tbsp olive oil
1 tbsp butter
1 large yellow onion sliced
1 large green bell pepper optional, sliced
1 tsp salt
1/2 tsp black pepper
8 slices provolone cheese
4 hoagie rolls
Method

Sauté onions (and peppers if using) until soft; set aside.
Cook sliced steak in a hot skillet until just done.
Combine steak with onions and top with cheese until melted.
Serve steak mixture in hoagie rolls.
Notes
Best served immediately while hot and cheesy.