4 open face hot beef sandwich Recipes

leftover roast beef, leftover gravy, salt and pepper, fresh herb , of your choice (optional), minced onion, sauteed lightly (optional), bread , of your choice

sauerkraut, dijon mustard, barbeque sauce, hot pepper sauce, whole wheat bread, sliced roast beef, shredded pepperjack cheese

red-skinned potatoes , pierced with a fork, unsalted butter, milk, kosher salt and freshly ground pepper, onion, sliced, all-purpose flour, low-sodium chicken broth, worcestershire sauce, thick slices sourdough bread, dijon mustard, prepared horseradish, sliced roast beef, watercress , woody stems removed, chopped fresh parsley