INGREDIENTS
8
slices hearty bread (1/2-inch thick)
1 tbsp
olive oil
1/4 cup
mayonnaise
1 lb
thinly sliced deli roast beef
8
slices provolone cheese
2
medium tomatoes, sliced
1
medium red onion, thinly sliced
optional: au jus, or horseradish sauce for dipping (McCormick makes an Au Jus Gravy Mix for when you're in a hurry.)