Arby's Roast Beef Sandwich Copycat Recipe: Slow-Smoked Flavor in Toasted Rolls

This Arby's roast beef sandwich copycat recipe delivers the iconic slow-smoked flavor you crave, right in your kitchen. The secret lies in a precise blend of spices and a cooking method that mimics the restaurant's signature taste—rich, savory, and perfectly tender.

I've perfected this over years of testing, ensuring every bite matches the original while adding my own professional touch for home cooks.

The key to authenticity starts with the beef—thinly sliced, seasoned with a proprietary spice blend, and cooked to achieve that signature tender yet slightly chewy texture. We'll use a combination of slow-roasting and quick-searing to replicate the restaurant's flavor profile without requiring specialized equipment.

The toasted rolls are just as important, crisped to a golden brown that holds up perfectly to the juicy beef and tangy sauce.

What you'll end up with is a sandwich that's dangerously close to the original—thin slices of perfectly seasoned roast beef piled high in a toasted roll, with just the right amount of sauce for that classic Arby's tang.

The beef stays tender and flavorful, while the roll provides the perfect contrast in texture. This is the kind of copycat recipe that actually delivers on its promise.

Whether you're craving a nostalgic fast-food fix or just love a great roast beef sandwich, this recipe satisfies with restaurant-quality results. The method is straightforward, and the ingredients are simple, but the attention to detail makes all the difference. Let's get started on recreating this American classic at home.

Ingredients for arby's roast beef sandwich copycat

The secret to Arby's iconic flavor starts with these 14 simple but powerful ingredients.

The beef is non-negotiable—top round roast gives you that signature tender yet slightly chewy texture. Most grocery stores carry it, often labeled as 'roast beef' or 'London broil'. If you can't find it, sirloin tip works in a pinch. The key is slicing it thinly against the grain—use a sharp knife and ask the butcher to slice it for you if possible. For the seasoning blend, I use a mix of onion powder, garlic powder, smoked paprika, salt, and black pepper—this replicates that signature Arby's kick without being overpowering.

No Worcestershire sauce? Substitute with soy sauce plus a dash of vinegar—it won't be identical, but close. Running out of horseradish sauce? Mix prepared mustard with a pinch of cayenne and a splash of vinegar for that tangy bite. The mustard in the marinade is crucial—it tenderizes the beef and adds that signature flavor. If you're short on time, substitute with a tablespoon of Dijon mustard instead. For the rolls, any good-quality white bread works, but Texas Toast-style rolls from the bakery section give you that perfect toasted crunch.

Marinate the beef for at least 4 hours—overnight is even better. The seasoning blend keeps well in an airtight container for up to 2 weeks, so make extra for future copycat sandwiches. Leftover beef reheats beautifully—just warm it in a skillet with a splash of beef broth to keep it moist. Store the sauce in the fridge for up to 1 week, and the rolls can be toasted fresh or reheated in a toaster. This recipe makes enough for 4 sandwiches, but I always double it—leftovers make amazing wraps the next day.

Step-by-step instructions for Arby's roast beef sandwich copycat recipe

Here's how to recreate that iconic slow-smoked flavor at home with tender beef and zesty sauce.

In a large bowl, combine the 1.5 lb Top Round Roast Beef sliced thinly against the grain with the 0.25 cup Yellow Mustard, 1 tbsp Worcestershire Sauce, 2 tbsp Olive Oil, 4 cloves Garlic Cloves minced, 0.5 cup Beef Broth, and 2 tbsp Arby's Style Seasoning Blend. The seasoning blend should include 1 tsp Salt, 0.5 tsp Black Pepper, 0.5 tsp Onion Powder, 0.5 tsp Paprika, and 0.5 tsp Garlic Powder mixed together beforehand.

Use your hands to thoroughly coat each slice of beef with the marinade, ensuring every surface gets an even distribution. Cover the bowl and refrigerate for at least 4 hours or overnight—this step is critical for tenderizing the beef and infusing it with deep flavor. The longer it marinates, the more tender and flavorful the result will be.

Preheat your oven to 325°F. Arrange the marinated beef slices in a single layer on a baking sheet lined with parchment paper, ensuring they don't overlap. Bake for 2 to 2.5 hours, flipping the slices halfway through the cooking time at the 1-hour mark. The beef is done when it reaches an internal temperature of 160°F and is fork-tender.

Here's the thing—this low-and-slow cooking method mimics Arby's signature slow-smoking process. You'll notice the beef becomes incredibly tender and develops that characteristic smoky flavor from the seasoning blend. Don't be tempted to rush this step; patience is key for achieving that restaurant-quality texture.

While the beef cooks, combine the 0.25 cup Horseradish Sauce with 2 tablespoons of the reserved beef cooking juices in a small bowl. This simple sauce is what gives Arby's roast beef its signature tangy kick. Stir well to create a smooth, creamy consistency that's ready to be spread on your sandwiches.

If you find the sauce too thick, you can thin it slightly with a splash of Beef Broth or water. The sauce should coat the back of a spoon easily—this ensures it will spread smoothly on each toasted roll. Taste and adjust seasoning if needed, adding a pinch more salt or pepper if desired.

Slice each of the 4 whole White Bread Rolls in half horizontally and lightly toast them in a toaster or under a broiler for 1-2 minutes until golden brown. The toasted rolls provide the perfect crunchy base that complements the tender beef.

Spread a generous layer of the horseradish sauce on both halves of each roll. Then, layer the cooked roast beef slices evenly between the top and bottom halves. The beef should be warm from the oven, making it easy to handle and arrange neatly on the rolls.

Serve the sandwiches immediately while the beef is still warm and the rolls are crispy. The contrast between the tender, flavorful beef and the tangy horseradish sauce on toasted rolls is what makes this copycat recipe so satisfying.

For an extra touch, you can sprinkle a pinch of freshly ground black pepper on top before serving. This sandwich is best enjoyed fresh out of the oven when the bread is still warm and the flavors are at their peak. You'll be amazed at how closely this homemade version replicates the iconic taste of Arby's roast beef sandwiches!

Make-ahead tips for this dish

Beef Prep Ahead

Slice the 1.5 lb Top Round Roast Beef against the grain and marinate it up to 3 days in advance—this is my secret for restaurant-quality tenderness. Store the marinated beef in an airtight container with the marinade in the fridge.

When ready to cook, simply transfer it to a baking sheet and proceed with the 325°F oven method for 2-2.5 hours. The beef reheats beautifully—just warm it in a skillet with a splash of beef broth to maintain moisture. 🥩

Sauce Prep

Make the horseradish sauce a day ahead and store it in a small airtight container in the fridge. The flavors meld beautifully overnight, intensifying that signature tang. If you're short on time, you can mix it fresh, but prepping ahead ensures you never forget this crucial component.

I like to double the batch—it keeps for 1 week and adds zing to other sandwiches too.

Roll Strategy

Toast the rolls fresh before assembling, but you can prep them ahead by slicing them in half and storing the halves in a sealed bag at room temperature for up to 2 days.

Toast them just before serving to maintain that perfect crunch. For a shortcut, buy pre-sliced Texas Toast rolls from the bakery section—they're already perfect for this recipe. ✨

Assembly Timeline

Here's my game plan for meal prep: Cook the beef and sauce the day before, then store them separately. When ready to serve, simply toast the rolls, assemble the sandwiches, and enjoy.

The beef stays tender when reheated gently, and the sauce maintains its tangy punch. This approach lets you focus on enjoying your sandwich rather than last-minute cooking. 💪

Freezer-Friendly

For maximum convenience, freeze the cooked beef in single-serving portions wrapped tightly in plastic wrap. Thaw overnight in the fridge, then reheat in a skillet with a splash of beef broth.

The rolls toast perfectly from frozen—just add 1 extra minute to your toasting time. This method works great for quick lunches or game day parties.

Game Day Hack

Double the recipe and prep everything ahead for game day success. Store the cooked beef and sauce in separate containers, and keep the rolls in a sealed bag.

When game time arrives, simply assemble and serve—no last-minute cooking required. I've hosted countless watch parties using this exact strategy, and it's always a crowd-pleaser. 🏈

Frequently asked questions