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Roast Beef Sandwich Recipe with Horseradish Roast Beef Sandwich Sauce
Prep Time
10 mins
Total Time
10 mins

A roast beef sandwich recipe featuring ready-made, deli roast beef, marbled rye, roasted red bell peppers, spinach, shallots and an easy horseradish roast beef sandwich spread to top it all off!

Course: Main Course
Cuisine: American
Servings: 4 Sandwiches
Calories: 402 kcal
Author: Kelly Anthony
For the Creamy Horseradish Sauce:
  • 1/4 cup mayonnaise
  • 1/4 cup creme fraiche or sour cream
  • 2 tablespoons prepared horseradish
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon Kosher salt
For the Sandwiches:
  • 8 1/2" slices of swirled rye or home-style, white bakery bread
  • 3/4 pound about 12 slices deli roast beef
  • 1 shallot thinly sliced
  • 1 roasted red bell pepper from jar, e.g. Dellalo's Roasted Red Peppers in Water, patted dry and sliced into 1/4" strips
  • 1 cup baby spinach rinsed and dried
  • Kosher salt and black pepper to taste
  1. Add all of the creamy horseradish sauce ingredients to a small mixing bowl, and whisk to combine. Set aside until ready to use. 

  2. For the sandwiches, lay out the slices of bread onto a work surface. Smear desired amount of sauce across the bottom slice of bread and top with 3 slices of roast beef, folding each a bit like an accordion to fit it on on the slice of bread. Add shallots, roasted red pepper, and spinach to your liking, dividing the ingredients evenly amongst the sandwiches. 

  3. Top with a generous dollop of creamy horseradish sauce, as well as a tiny pinch of Kosher salt and pepper. Top the sandwich with the other slice of bread, serve right away and enjoy. 

Nutrition Facts
Roast Beef Sandwich Recipe with Horseradish Roast Beef Sandwich Sauce
Amount Per Serving
Calories 402 Calories from Fat 162
% Daily Value*
Fat 18g28%
Saturated Fat 4g25%
Cholesterol 61mg20%
Sodium 2076mg90%
Potassium 459mg13%
Carbohydrates 34g11%
Fiber 4g17%
Sugar 4g4%
Protein 24g48%
Vitamin A 840IU17%
Vitamin C 47.3mg57%
Calcium 316mg32%
Iron 3.9mg22%
* Percent Daily Values are based on a 2000 calorie diet.