- 1 egg
- 1/2 cup panko
- 1 scallion, minced
- 2 tbsp worcestershire sauce
- the juice of half a lemon
- salt
- 1/2 tsp cayenne
- 1 lb lean ground beef
- swiss cheese, sliced
- 1/4 lb mushrooms, sliced
- olive oil
- mayonnaise
- dijon
- buns
- Combine the egg, panko, scallions, worcestershire sauce, lemon, 1 tsp salt, cayenne and ground beef.
- Form into 4 patties.
- Grill the patties.
- Meanwhile heat the oil in a skillet on high heat and saute the mushrooms. Season with a little salt and cracked pepper.
- Melt the cheese on the patties.
- Spread the mayonnaise and dijon on the buns. Top with the patties, and then the mushrooms. Serve.