Cheesesteaks

Name: Cheesesteaks
Prep time: 35 min
Cook time: 50 min
Total time: 1 h 25 min
Cuisine: American
Ingredients: 4 hoagie rolls (sliced (We love the Publix hoagie rolls!)); 1/2 green pepper (sliced); 1 large white onion (cut in half and sliced thick); 8 oz mushrooms (sliced); 1.25 to 1.5 pounds beef ribeye steaks (sliced thinly across the grain and then chopped roughly again so they are small pieces); salt & pepper; 3 1/2 Tablespoons salted butter; 8 slices of cheese (Provolone or Muenster)