Roast Beef Sandwich Recipe, How to make Roast Beef Sandwich Recipe - Vaya.in

Ingredients

• large, thinly sliced red onion: 1
• Kosher salt: 1 tbsp
• tablespoons of red wine vinegar: 6
• cup of mayonnaise: 3/4
• slices of american cheese: 6
• cup of sour cream: 3/4
• jarred grated horseradish: 2 tbsp
• teaspoon of grated lemon zest: 1/2
• freshly grounded black pepper
• any hot sauce
• freshly baked kaiser rolls: 6
• slices of ripped tomatoes: 12
• ounces of freshly sliced rare roast beef: 24
• loosely packed cups of watercress or arugula: 3