Super Philly Beef Sandwiches - cooking recipe

Ingredients

1 Tbsp. margarine or butter
1 medium onion, chopped
1 1/2 c. sliced mushrooms
1/3 c. chopped bell pepper
4 kaiser rolls
1/2 lb. thin sliced, cooked roast beef
4 slices Provolone cheese

Preparation

Heat margarine in skillet.
Saute mushrooms, onion and bell pepper until tender.
Heat oven to broil.
Place bottom halves of rolls on a cookie sheet.
Layer vegetable mixture, beef and cheese on bottom halves.
Place tops of rolls on cookie sheet.
Broil until cheese is melted, 2 to 3 minutes.