About This Recipe
This recipe focuses on building a superior roast beef sandwich using properly cooked or high-quality prepared roast beef, crisp vegetables, and a balanced sauce. The goal is to achieve the ideal ratio of tender, savory meat to fresh crunch and creamy or tangy condiments. While many assume a great roast beef sandwich requires a deli counter, this method uses widely available ingredients and simple techniques to replicate (and elevate) the classic sandwich at home. The instructions are based on standard culinary practices for sandwich assembly and meat handling.
This sandwich is inspired by the traditional American roast beef sandwich, often served on a soft yet sturdy roll with horseradish sauce or au jus on the side. Here we focus on a cold or slightly warm sandwich with maximum flavor and texture integrity.
Why You’ll Love This Recipe
- Deli quality at home – You control the meat thickness, bread freshness, and ingredient ratios.
- No complicated cooking required – Uses sliced roast beef (home-roasted or good deli roast beef) and simple assembly.
- Highly customizable – Adjust the horseradish heat, cheese, or add greens to your preference.
- Perfect for meal prep – Ingredients store well; you can assemble a sandwich in under 5 minutes once everything is prepped.
- Balanced and satisfying – Protein-rich, with crisp vegetables and a creamy-spicy sauce that complements the beef.
Ingredients
Yields: 2 large sandwiches
- For the sandwich base:
- 2 soft hoagie rolls or sub rolls (about 8 inches each), or 2 ciabatta rolls
- 340–400g (12–14 oz) thinly sliced roast beef (medium-rare preferred, from leftover roasted sirloin, top round, or quality deli roast beef)
- 4 slices provolone cheese (or sharp white cheddar) – optional
- 1 cup fresh arugula or crisp lettuce (butter lettuce or romaine)
- 1 small red onion, very thinly sliced (about ¼ cup)
- 1 medium tomato (ripe but firm), sliced into 4 thin rounds
- 2 tablespoons unsalted butter, softened (for toasting rolls)
- For the creamy horseradish sauce:
- ¼ cup mayonnaise (full-fat preferred)
- 2 tablespoons prepared horseradish (drained slightly, adjust for heat level)
- 1 teaspoon Dijon mustard
- ½ teaspoon white wine vinegar or lemon juice
- Pinch of salt and freshly ground black pepper
- Optional additions: pickled banana peppers, crispy fried onions, or a drizzle of extra virgin olive oil.
Step by Step Instructions
- Prepare the horseradish sauce: In a small bowl, combine mayonnaise, prepared horseradish, Dijon mustard, vinegar (or lemon juice), salt, and pepper. Whisk until smooth. Taste and adjust horseradish if you desire more heat. Set aside (can be made 2 days ahead, refrigerated).
- Prep the vegetables: Thinly slice the red onion (use a mandoline or sharp knife). Slice the tomato and pat the slices dry with a paper towel to remove excess moisture. Wash and dry the arugula or lettuce. Keep all vegetables refrigerated until assembly.
- Toast the rolls: Slice the hoagie rolls lengthwise without cutting all the way through (hinge method) or split completely in half. Spread the cut sides lightly with softened butter. Heat a skillet or griddle over medium heat. Place the rolls cut-side down and toast until golden brown and slightly crisp, about 1–2 minutes. Alternatively, toast under a broiler for 45 seconds. Toasting adds structural integrity and flavor.
- Warm the roast beef (optional but recommended): For best texture, gently warm the sliced roast beef. You can either place the slices in a dry non-stick skillet over low heat for 30–45 seconds per side, or microwave covered with a damp paper towel for 20 seconds. Do not overcook; you only want to take the chill off and enhance the savory aroma.
- Assemble the bottom layer: Spread a generous amount of horseradish sauce on both cut sides of the toasted rolls. On the bottom half, layer the provolone cheese (if using) directly on the sauce so it slightly melts from the warm beef.
- Add the roast beef: Pile the warmed roast beef evenly over the cheese (or directly on sauce). Fold the slices loosely to create height and airiness, not flat layers. Season the beef with a small pinch of black pepper.
- Top with vegetables: Arrange the sliced red onion over the beef, followed by the tomato slices. Add the arugula or lettuce on top of the tomatoes. The greens act as a barrier to keep the top bun from getting soggy.
- Close the sandwich: Place the top half of the roll over the fillings. Gently press down to compact the sandwich without crushing. For a classic finish, you can wrap the sandwich tightly in parchment paper or foil for 2 minutes to let the flavors meld.
- Slice and serve: Using a serrated knife, cut each sandwich in half on a slight diagonal. Serve immediately, with extra horseradish sauce on the side or a small bowl of au jus if desired.
FAQ
Medium-rare roast beef from top round, bottom round, or sirloin provides the best flavor and tenderness. If purchasing deli-style, ask for whole slices about ⅛-inch thick. Avoid pre-packaged “shaved” beef as it can become dry and lacks texture. Home-roasted beef, chilled and sliced thin, works exceptionally well.
Assembled sandwiches are best eaten within 2 hours to avoid sogginess. However, you can prep all components (sauce, sliced veg, toasted rolls) separately up to 1 day ahead. Store the sauce in an airtight container, vegetables in separate bags, and keep rolls at room temperature. Assemble just before serving.
Horseradish is traditional for roast beef sandwiches because its pungency cuts through the richness of the meat. If you dislike horseradish, substitute with a garlic aioli, whole grain mustard, or even a mix of mayonnaise and Worcestershire sauce. The recipe still works beautifully.
Use buttered and toasted rolls as they create a fat barrier. Additionally, place the lettuce/arugula between moist ingredients (tomatoes) and the top bun. Pat tomatoes dry before adding, and do not overdress the inside with sauce. If packing for lunch, keep sauce in a separate small container and add right before eating.
Yes. To make a French dip style, prepare a simple jus by heating 1 cup beef broth with a splash of Worcestershire and a pinch of onion powder. Serve the sandwich as directed, but skip the lettuce and tomato if you plan to dip. The warm horseradish sauce still complements the beef excellently.
You Must Know
Meat quality matters: The star is roast beef. Use freshly roasted or high-quality deli roast beef with visible marbling. Avoid water-added or “roast beef” loaf products — they contain binders and lack texture.
Slice against the grain (if using whole roasted beef): If you roast your own beef round or sirloin, always slice across the grain into thin, even slices. This maximizes tenderness.
Rest the beef before slicing: Home-roasted beef must rest for at least 20 minutes before slicing to retain juices. Chill completely before attempting thin slices (a sharp slicing knife helps).
Don’t overload the sandwich: While it’s tempting to pile on meat, a ratio of roughly 5–6 oz (140–170g) of beef per sandwich ensures structural stability and balanced bites.
Season in layers: A pinch of flaky salt on the tomatoes and a crack of black pepper on the beef elevates each component. Do not rely solely on the sauce.
Warm the rolls properly: Toasting with butter creates a golden crust that prevents sogginess and adds flavor. Do not skip this step — it defines a superior homemade sandwich.
Storage Tips
Storing components (best method): Keep sliced roast beef in an airtight container in the refrigerator for up to 3 days. Store horseradish sauce in a jar for up to 5 days. Keep vegetables (lettuce, onion, tomato) separate, each in their own container or wrapped in paper towels to absorb moisture. Keep bread rolls wrapped in foil or a paper bag at room temperature for up to 2 days. Do not refrigerate rolls — they will stale faster.
Storing fully assembled sandwiches: If absolutely necessary, wrap tightly in aluminum foil or plastic wrap and refrigerate for up to 12 hours. However, expect some textural change (soft bread, less crisp veggies). To refresh, remove any lettuce or tomato, then reheat the sandwich (still wrapped in foil) in a 325°F (160°C) oven for 8–10 minutes. Re-add fresh greens after warming.
Freezing: Not recommended — mayonnaise-based sauce separates when frozen, and bread texture degrades significantly. Roast beef itself freezes well for up to 2 months (wrap tightly), but for sandwiches, always prepare fresh components.
Leftover roast beef ideas: Extra slices can be used for wraps, chopped for beef hash, or added to salads. The horseradish sauce works as a spread for any cold meat sandwich.
— Crafted for the home cook. No artificial flavors, just classic technique — enjoy your finest roast beef sandwich. —
The post Make The Best Roast Beef Sandwich At Home appeared first on More Recipes.



