1 2.5-3 lb. beef roast (you can use a frozen roast if you want)
2 Tbsp. olive oil
salt and pepper
2 1-oz packages dry onion soup mix
2 c. water
2 cans beef broth
6-8 large buns (or more…6 would be VERY generous servings!)
Swiss, provolone, or mozzarella cheese, shredded or sliced.