"Why build 12 separate sandwiches when you could make one?..."
INGREDIENTS
•
1 small yellow onion
•
1 small green bell pepper
•
1 tablespoon fresh parsley leaves, for garnish (optional)
•
3 tablespoons unsalted butter
•
1/2 teaspoon kosher salt
•
1 (12-ounce) package Hawaiian sweet rolls, such as King's
•
6 slices American cheese, preferably white
•
24 thin slices deli roast beef (about 24 ounces)
•
6 thin slices provolone cheese