Roast Beef Wrap with Horseradish Sauce

Slice your leftover homemade or bought roast beef. Slice or tear your lettuce. Peel the horseradish root and finely grate it. In a bowl, mix it with the sour cream, mustard, Worcestershire sauce, dill and season with salt and pepper. Spread the sauce over 2 large tortilla wraps. Divide a good handful of lettuce between each one, along with 1 small red onion and pickled gherkin, finely sliced, and the cooked roast beef. Wrap each tortilla up tightly, cut in half and serve with the remaining horseradish sauce, for dipping.