I got this recipe from my sister-in-laws recipe blog and it is now one of my favorites!
1 lb. Italian Roast Beef
Meunster Cheese (8 slices will do)
Au juis packet
Follow directions on the back of Au Juis packet. Butter hoagie rolls and put under the broiler until they brown and crisp. Pull out and add the roast beef and meunster cheese and return to broiler until cheese is melted and bubbling a bit. Remove and serve with au juis gravy for dipping. Oooh soooo goood!