Lunch: Prime Rib Sandwich with Caramelized Onions, Arugula and Horseradish Cream

Prime Rib Sandwich makes a very tasty lunch or dinner!

Ingredients

2 tablespoons butter
Leftover prime rib, sliced thin
1 large Vidalia onion, sliced thinly
4 sandwich rolls, such as ciabatta or sourdough, split lengthwise and toasted
1/4 cup mayonnaise
1/4 cup sour cream
3 tablespoon prepared horseradish
1/4 cup baby arugula leaves

Instructions

In a large skillet over medium heat melt the butter.
Add the onions and cook until golden and caramelized, about 15-20 minutes.
In a small bowl, combine the mayonnaise, sour cream, and horseradish.
Spread generously on each side of the rolls.
On one side of the roll layer prime rib slices, caramelized onions, then arugula.
Top with remaining half of roll.

Add a review for Prime Rib Sandwich with Caramelized Onions, Arugula and Horseradish Cream