Photo of Roast Beef Sandwiches with Horseradish Mayo by WW

Roast Beef Sandwiches with Horseradish Mayo

Total Time
10 min
10 min
0 min
Peppery arugula and hot horseradish give this sandwich recipe great bite. It’s so much more than your average roast beef sandwich, and it takes just 10 minutes to make. If arugula isn't your favorite, you can use spinach, romaine, or iceberg lettuce instead. Also, plum tomatoes are a good choice for this sandwich because they are less juicy than other tomatoes and won't make the bread too soggy. We love the flavor combination of mayonnaise, horseradish, and a touch of black pepper, which really ties all of the ingredients together. Just be sure not to forget to serve a couple of pickles alongside!


Reduced calorie mayonnaise

2 Tbsp

Store-bought horseradish

1¼ tsp, drained

Black pepper

tsp, freshly ground (or more to taste)

Reduced-calorie rye bread

4 slice(s), toasted

Deli style roast beef slices

4 oz, thinly sliced (four 1-oz slices)

Plum tomato

1 medium, thinly sliced


1 cup(s), baby leaves, lightly packed


  1. In small cup, stir mayonnaise, horseradish, and black pepper together. On 1 side of each slice of bread, spread about 11⁄2 tsp mayonnaise mixture. Between 2 slices of bread, equally divide beef, tomato, and arugula. Cover each with remaining bread.
  2. Serving size: 1 sandwich