Step 1
Prepare your Au Jus mix in a small saucepan, per the package directions.
Step 2
Warm your sliced roast beef by putting it in a covered casserole dish and microwaving on half power for about 2 minutes. You don't want to use high heat because it will toughen the meat. Shuffle the meat in the dish, and continue heating on half power for 1 minute intervals until warm. Alternately, you can wrap it in foil and heat in the oven until warm.
Step 3
Toast the Sandwich rolls, if desired.
Step 4
Butter the sandwich rolls, and put about 1/3 lb of roast beef on each sandwich. If desired, add a slice of provolone or havarti cheese.
Step 5
Ladle the Au Jus into a ramekin or small dish, and serve with sandwich. Delicious, and SO easy!
