Roast Beef Subs with Balsamic Onions and Brie Cheese
It is possible to create an appetizer by slicing baguette into 1/2-inch slices and toasting them to a golden brown. Instead of using cubed beef, cook the entire roast at 250 degrees for 35 minutes, allow to cool, and slice thinly, using a very sharp knife or a slicer. Cut those slices into strips or pieces. Layer the onions, beef, and finally the brie on top and broil briefly for finger-food appetizers.