→ Main Ingredients
01 -
2 pounds top sirloin steak or ribeye, trimmed and sliced very thin
02 -
2 tablespoons vegetable oil, divided
03 -
8 slices mild provolone cheese
04 -
4 tablespoons butter, softened
05 -
4 tablespoons mayonnaise
06 -
4 hoagie rolls, sliced through
→ Vegetables & Seasoning
07 -
4 oz sliced mushrooms
08 -
1 large yellow onion, chopped
09 -
1 green bell pepper
10 -
1 red bell pepper
11 -
1/2 teaspoon minced garlic
12 -
2 teaspoons coarse Kosher salt, or to taste
13 -
1/2 teaspoon black pepper, or to taste