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This Arby’s roast beef and cheddar cheese sandwich recipe delivers the iconic toasted bun crunch and melted cheese rivers you crave at home. The secret lies in slow-cooked, tender roast beef that practically falls apart when sliced, combined with sharp cheddar that melts into gooey perfection between each layer.
I’ve perfected this version after countless test batches—no shortcuts, just restaurant-quality results with a home-cooking twist.
The process starts with a simple yet crucial step: cooking the beef low and slow until it’s fork-tender, then slicing it thin against the grain for maximum tenderness. Meanwhile, the cheese gets melted just enough to create those signature rivers when the sandwich comes together.
The buns toast to a golden crisp, adding texture that balances the rich, savory filling. This isn’t just a sandwich—it’s a full meal experience.
What you’ll end up with is a sandwich that tastes like you ordered it from Arby’s, complete with that satisfying crunch, melty cheese pull, and beef so tender it nearly dissolves.
The assembly is straightforward, but the flavor payoff is anything but basic. Every bite delivers the perfect harmony of textures—crispy bun, tender beef, and gooey cheese—all in one irresistible package.
Serve with classic sides like crispy fries or a side salad for the full Arby’s vibe, or enjoy it solo as a hearty lunch. The recipe scales easily, so you can make one for yourself or feed a crowd. Let’s get started on recreating this iconic sandwich at home!
Ingredients for arbys roast beef and cheddar cheese sandwich
Four ingredients make this iconic sandwich taste just like Arby’s—tender beef, sharp cheddar, toasted buns, and that perfect melty pull.
| Ingredient | Amount | Notes |
|---|---|---|
| Roast Beef 🥩 | 1 ½ lb | Slow-cooked, thinly sliced against grain |
| Sharp Cheddar Cheese 🧀 | 8 oz | Block cheese, freshly grated |
| Arby's Style Sesame Seed Buns 🍞 | 4 whole | Or sub with potato buns |
| Unsalted Butter 🧈 | ¼ cup | For toasting buns |
| Yellow Mustard 🍯 | ¼ cup | For assembly |
| Mayonnaise 🥛 | ¼ cup | For assembly |
| Onion Powder 🧅 | 1 tbsp | For beef seasoning |
| Garlic Powder 🧄 | 1 tbsp | For beef seasoning |
| Black Pepper 🌶️ | ½ tsp | Freshly ground preferred |
| Beef Broth 💧 | 1 cup | For slow-cooking beef |
| Olive Oil 🫒 | 1 tbsp | For slicing beef |
| Salt 🧂 | 1 tsp | Kosher or sea salt |
The beef is everything here. Grab a chuck roast from the butcher section—it’s cheaper and more flavorful than pre-sliced deli beef. I like to get mine from Costco when they have it on sale, but any grocery store carries it. Look for good marbling; that’s what keeps the meat juicy. The beef broth is non-negotiable—it adds depth that water can’t match. If you’re short on time, slow cooker on low for 6-8 hours does the trick perfectly.
No sesame seed buns? Potato buns work just as well—they toast up beautifully. The cheese needs to be sharp cheddar (none of that pre-shredded stuff), and if you can’t find a block, sharp white cheddar from the deli section is your next best bet. For the condiments, French’s yellow mustard and Hellmann’s mayo are the gold standard, but any good-quality brands will do. Want extra flavor? Add a dash of smoked paprika to the beef seasoning—it gives it that Arby’s touch.
The beef keeps best in the fridge for 3-4 days if you make it ahead, but the sandwiches are best fresh. Buns toast up to room temperature in 5 minutes—don’t rush this part. Store leftovers in an airtight container with parchment between layers to keep them from getting soggy. They reheat well in a skillet over medium heat for 2-3 minutes per side—just enough to crisp the buns again.
Why You'll Love This Recipe
- Five-Ingredient Magic: I swear by this combo—roast beef, sharp cheddar, and that buttery sesame bun are all you need. No fancy prep, no chopping, just slice, layer, and toast. Honestly, my lazy Sundays just got a whole lot easier.
- That Crunchy-Creamy Fix: The moment the cheddar melts into warm, tender beef while the bun stays crispy? Chef’s kiss. That yellow mustard tie-in? It’s the secret sauce—trust me, it’s not just a sandwich anymore.
- Lunchbox Legend: Between us, this is my go-to for packed lunches or tailgates. The beef stays juicy for hours, and those sesame buns? They hold up like champs. (Yes, even on a Tuesday night.)
- Budget Win: Roast beef on sale + a block of cheddar = my wallet’s new best friend. One pound of beef stretches to four sandwiches, and those buns? They’re cheaper than takeout but taste like you spent all day in the kitchen.
Step-by-step instructions for Arby’s roast beef and cheddar cheese sandwiches
Here's how to recreate that iconic toasted bun crunch and gooey cheese—just like the classic Arby’s version.
Slow-Cook the Roast Beef Until Fork-Tender
Place the 1.5 lb roast beef in a slow cooker and pour in the 1 cup beef broth. This liquid helps tenderize the meat as it cooks. Sprinkle the 1 tbsp onion powder, 1 tbsp garlic powder, 1 tsp salt, and 0.5 tsp black pepper directly over the beef, pressing the spices into the surface so they stick. Cover and cook on Low for 8-10 hours—this long, gentle cook ensures the meat becomes fork-tender without drying out.
Real talk: Don’t rush this step. The beef should pull apart easily with a fork and have a rich, beefy flavor. If you’re short on time, you can use a pressure cooker for 2 hours on high, but the slow cooker method delivers the best texture. Once done, remove the beef and let it rest for 10 minutes before slicing—this prevents the meat from shrinking when you cut it.
Slice the Beef Thinly Against the Grain
After resting, place the beef on a cutting board and slice it thinly against the grain—this is key for tenderness. I use a sharp carving knife and slice each piece into ¼-inch thick strips. If the beef feels cool or firm, let it sit at room temperature for another 5 minutes before slicing. The 1 tbsp olive oil mentioned in the ingredients isn’t used here, but if you’re worried about sticking, lightly coat your knife with it between slices.
Here’s the thing—if you slice with the grain, the meat will be tough and chewy. Against the grain means you’re cutting perpendicular to the muscle fibers, which shortens them and makes each bite melt in your mouth. Transfer the sliced beef to a clean plate and cover loosely with foil to keep it warm while you prep the rest.
Assemble the Sandwiches with Mustard and Mayo
In a small bowl, mix together the 0.25 cup yellow mustard and 0.25 cup mayonnaise until fully combined. This blend gives you that signature tangy-sweet balance Arby’s is known for. Spread 1 tablespoon of the mustard-mayo mixture on each side of the 4 whole Arby’s Style Sesame Seed Buns. Don’t skimp—you want that flavor in every bite.
Next, layer 2-3 slices of the sliced roast beef onto the bottom half of each bun. Top with 2 oz of the freshly grated sharp cheddar cheese—using block cheese and grating it yourself makes a huge difference in texture. The cheese should be cold when you add it so it melts beautifully when toasted. Keep the sandwiches assembled but uncovered while you toast them.
Toast the Buns to Golden Perfection
Heat a large skillet over medium heat and melt the 0.25 cup unsalted butter until it foams but doesn’t brown. Place the assembled sandwiches in the skillet, butter-side down, and toast for 2-3 minutes per side until the buns are golden brown and the cheese is fully melted with those classic "cheese rivers" oozing out. The butter adds richness and helps create that crispy, toasted crust.
Don’t walk away—this is the moment that matters. You’ll know it’s done when the buns are crispy, the cheese is bubbly, and the edges are golden. If the cheese starts to brown too quickly, reduce the heat slightly. Once toasted, transfer the sandwiches to a plate and let them rest for 1 minute before serving. This resting time helps the cheese set slightly, making it easier to handle.
Serve Immediately for Maximum Enjoyment
Cut each sandwich in half and serve immediately while the buns are still warm and crispy. The contrast of the toasted, buttery bun, the tender roast beef, and the melted cheddar creates the perfect balance of textures and flavors. Pair with a side of crispy fries or a simple green salad to complete the experience.
Pro tip: If you’re making these ahead of time, assemble the sandwiches without toasting and refrigerate them. When ready to serve, toast them in the skillet as directed—they’ll still taste amazing, though the buns might not be as crispy. Enjoy your homemade Arby’s-style sandwiches!
Pro Tips For Making Arbys Roast Beef And Cheddar Cheese Sandwich
- TOAST BUNS LOW: Arby’s buns get their signature softness from a slow, gentle toast—not a blast of heat. Warm them in a dry skillet over medium-low for 30 seconds per side, just until the sesame seeds glisten. I used to rush this and ended up with dry, sad bread that couldn’t hold up to the beef.
- SHRED CHEESE HOT: Cold cheddar slices won’t melt properly—they’ll just sit there like a sad, uncooperative guest. Heat them in a dry pan for 10 seconds per side until they’re pliable but not oily, then layer them on top of the beef while it’s still warm. The residual heat will do the work for you.
- SALT THE BEEF: Unsalted butter is neutral, but roast beef often isn’t. Give the slices a quick sprinkle of flaky salt before assembling—especially if your beef is lean or pre-sliced. A pinch on each side guarantees the cheese melts smoothly and the sandwich isn’t bland.
- BUTTER THE BUN INSIDE: Slather the inside of the sesame bun with a thin layer of melted butter before adding the beef and cheese. This isn’t just about flavor—it’s the only way to prevent the sandwich from sticking to the grill or pan when you inevitably press it down. Trust me, you’ll regret skipping this.
Make-ahead tips for arbys roast beef and cheddar cheese sandwich
Beef Prep Ahead
Cook the beef up to 3 days in advance and store it in an airtight container with the cooking juices. The flavors deepen over time, and the texture becomes even more tender.
When ready to use, simply reheat the beef in a skillet over medium heat for 2-3 minutes with a splash of beef broth to keep it moist. Let it rest for 5 minutes before slicing—this makes the final assembly easier. 🥩
Cheese Pre-Melting
Grated cheese loses its sharpness when stored, so melt it ahead of time for maximum flavor. Place 2 oz of sharp cheddar in a microwave-safe bowl and heat in 20-second bursts on medium power, stirring between each, until just melted but not stringy.
Let it cool slightly before using—this prevents soggy buns when assembling. Store melted cheese in an airtight container for up to 24 hours.
Bun Pre-Toasting
Toast the buns 1 day ahead and store them at room temperature in a paper bag to maintain crispness. Reheat in a skillet with 1 tbsp butter over medium heat for 1 minute per side before assembling sandwiches.
Alternatively, wrap toasted buns in aluminum foil and reheat in a 350°F oven for 5 minutes—this keeps them warm without losing crunch. 🍞
Assembly Shortcuts
Mix the mustard and mayo ahead and store it in a small airtight container in the fridge for up to 5 days. This saves time during assembly and ensures consistent flavor. Keep the beef and cheese separate until ready to assemble—this prevents soggy sandwiches.
For meal prep, assemble sandwiches without cheese, wrap them in parchment paper, and refrigerate for up to 12 hours. Add cheese fresh when toasting.
Freezer-Friendly Method
Assemble sandwiches without toasting and freeze them on a tray for 1 hour to set. Transfer to a freezer bag with parchment between layers for up to 1 month.
To serve, thaw overnight in the fridge, then toast in a skillet with 1 tbsp butter over medium heat for 2-3 minutes per side. The buns will crisp up beautifully, though they won’t be as toasty as fresh. Perfect for quick lunches! ❄️
Cheese River Hack
For extra gooey cheese rivers, place a small piece of wax paper between the cheese and beef when assembling. When you toast the sandwich, the cheese will melt dramatically and create those signature rivers without sticking to the skillet.
Remove the wax paper before serving—it dissolves in the heat and leaves behind perfect, bubbly cheese. Trust me, this is a game-changer! 🧀
Nutrition facts
Frequently asked questions
Can I use pre-sliced deli roast beef instead of slow-cooked?
While it’s possible, the texture won’t be the same. Pre-sliced deli beef is often tougher and lacks the rich, tender flavor of slow-cooked roast. If you must use it, look for thinly sliced chuck roast from the deli counter and slice it even thinner against the grain. For best results, simmer it in beef broth for 30 minutes first to soften it.
Why does my cheese not melt into rivers like Arby’s?
Freshly grated sharp cheddar is key—pre-shredded cheese contains anti-caking agents that prevent proper melting. Use block cheese and grate it yourself. Also, toast the sandwiches over medium heat with butter until the cheese is bubbly but not browned. For extra drama, try the wax paper hack mentioned in the make-ahead tips!
What’s the best way to reheat leftover sandwiches?
Wrap sandwiches in aluminum foil and reheat in a 350°F oven for 5-7 minutes—this keeps the buns crispy. For a quick fix, use a skillet over medium heat with 1 tbsp butter for 1-2 minutes per side. Never microwave—it makes the buns soggy. Always add cheese fresh when reheating for that melty texture.
Can I make this sandwich gluten-free?
Swap the sesame seed buns for gluten-free potato buns or lettuce wraps. Use tamari instead of soy sauce in the beef seasoning (if you add any), and check that your mustard and mayo are certified gluten-free. The beef and cheese remain the same—just focus on gluten-free substitutes for the bun and condiments.
How do I keep the buns from getting soggy?
Toast the buns right before assembling—never assemble sandwiches more than 10 minutes ahead of time. Keep beef and cheese separate until toasting, and store components in airtight containers with parchment between layers. For meal prep, assemble without cheese, wrap in parchment paper, and refrigerate for up to 12 hours**. Add cheese fresh when toasting.