Ingredients
Grilled Onions
1 red onion, peeled, sliced 1/8-inch thick slices
2 Tbsp olive oil
salt and pepper, to taste
Sandwich & Assembly
¼ cup mayonnaise
¼ cup creamed horseradish
leftover steak, thinly sliced
1 baguette or favourite loaf of bread, cut in half lengthwise
1-2 cups arugula, depending on how large of a sandwich you would like to make
Parimigiano-Reggiano cheese. sliced into ribbons using a vegetable peeler (optional)
Directions
Grilled Onions
1. Preheat your BBQ. Toss onion slices and olive oil together with salt and pepper.
2. Place on the grill and cook for 2-3 minutes until lightly charred and the onions have softened slightly. Remove and set aside.
Sandwich & Assembly
1. Mix together mayonnaise and horseradish in a bowl and set aside.
2. Place sliced steak on bottom piece of bread, spread grilled onions over the beef. Top with arugula and ribbons of parmesan. Top with other piece of bread. Cut into desired sized pieces and serve. Spread desired amount of horseradish mayo on each piece of bread.