Leftover Prime Rib Sandwich – a wonderful way to enjoy your leftover prime rib – super easy & packed with great flavors!
- Butter two pieces of bread.
- Place sliced prime rib on one side of bread.
- Top with horseradish sauce and caramelized onions.
- Place other piece of bread on top, buttered side down.
- Cut in half and serve.
- Type of Bread: feel free to use whatever type of bread you want!
Keywords: leftover prime rib sandwich