Sandwich Filling – Roast Beef Spread Mix: 1/2 cup sour cream1 tablespoon dry onion soup mix2 tablespoons horseradish sauce1 teaspoon salt1 teaspoon pepper Serve on bread; top with lettuce and sliced roast beef. Rate this:Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to share on Pinterest (Opens in new window) Pinterest Click to email a link to a friend (Opens in new window) Email Like Loading... Related