Best "Roast Beef Sandwich" Recipe

Ingredients

• 1/4 cup Mayo
• 2 tablespoon Dijon mustard
• 2 tablespoon Horseradish
• 6 Brioche buns
• 3 cups Arugula
• 3/4 pound Roast beef thinly sliced (- preferably medium rare)
• 6 slices Medium cheddar cheese (thinly sliced)
• 1/2 cup Caramelized onions

Instructions

1. 1

   Use a sharp knife to thinly slice the roast beef.

2. 2

   In a small bowl, prepare the horseradish cream sauce by combining horseradish, mayo, and dijon mustard. Stir and set aside.

3. 3

   Slice buns in half, and toast for a few minutes, until the tops are lightly browned but still soft to the touch.

4. 4

   Slather the buns with horseradish cream sauce on both sides. Add arugula to the bottom half of the bread, then top with roast beef and cheddar cheese.

5. 5

   Top with caramelized onions and close the sandwich. Slice into 6 equal pieces.