I will give you the list of ingredients, and you make your sandwich according to how many you are feeding. For one sandwich you need the following -
- toasted bread or bun of your choice
- your favorite mustard
- 1 small onion, caramelized (thinly sliced and fried slowly on low heat in a bit of butter or oil until you have a deep brown color)
- 1 fried egg
- leftover roast beef or store bought sliced cooked roast beef that you can purchase at the deli counter
Voila, with some pickles on the side that is all you need. Enjoy.