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