Beefed Up Roast Beef Sandwiches


I was getting bored of 'regular' roast beef sandwiches. I took things from a bunch of recipes and mixed it up a little. Easy to double-up this or size-down.i also use a pkg of au jus from clubhouse for dipping.

Steps


Melt 1 tbsp butter in frying pan.
Separate onion slices into rings and fry till tender and caramelized , set aside to cool slightly.
Toast buns till desired crispness , butter when done.
Layer on roast beef , onions and top with a mixture of each cheese.
At this point they can be wrapped in tinfoil and placed in a 350 degree oven for about 5 minutes to let the cheese melt', enjoy ! and it's really good with au jus !"]".

Ingredients


roast beef, onion, mozzarella cheese, parmesan cheese, butter, hoagie rolls