Ingredients
The following ingredients have 4 Servings
- 3 large onions (peeled and sliced)
- 2 tbsp olive oil
- 1 tbsp Worcestershire sauce
- ¼ cup Sherry (optional)
- Salt and pepper (a pinch each)
- 1 lb pot roast (leftover)
- 8 buns (dinner rolls, or slider buns)
- 2 tbsp unsalted butter (softened)
- 8 slices Swiss cheese
- Gravy (leftover, heated, for dipping)
