1/4 c. vinegar
1 Tbsp cooking oil
1/8 tsp pepper
1/4 tsp dry mustard
1/2 tsp salt
1 Tbsp Worcestershire sauce
1 lb. roast beef, sliced
1 large onion, sliced

Mix all ingredients except beef and onion. Pour over the beef and onion. Cover and refrigerate 3 hours or overnight. This will keep all week in the refrigerator if it lasts that long.

This recipe was contributed by Joan from the Radiant Recovery Community Forum.

This is great to pack for lunch. It tastes sort of like sauerbraten.