You are here: Home » Recipes » Roast Beef Sandwiches with Horseradish Roast Beef Sandwiches with Horseradish Yield 1 servings Make a cool deli sandwich with ciabatta rolls and sliced roast beef. High Cotton Food Styling & Photography PrintEmail Ingredients Sauce:1 tablespoon prepared horseradish1 tablespoon sour cream Coarsely ground black pepperSandwich:1 whole-wheat ciabatta roll1 slice smoked provolone1/2 ounce arugula1/4 pound thinly sliced deli-style roast beef Instructions To prepare sauce, combine horseradish, sour cream, salt and pepper. Mix well. Spread both halves of ciabatta roll with horseradish sauce. Layer bottom half with roast beef, cheese and arugula. Top with remaining roll half. Serves 1. Recipe by Karry Hosford, High Cotton, Natchez, Miss.