The moment you unwrap an Arby’s roast beef sandwich, the savory aroma hits you like a warm hug. With tender, thinly sliced beef nestled in a soft, sesame seed bun, it beckons you to take a bite. Juicy, flavorful, and oh-so-satisfying, this iconic sandwich is comfort food at its finest.

I remember the first time I tried to recreate that magical experience at home. It was a rainy Sunday afternoon, and I craved something flavorful. Little did I know, I was about to embark on a delicious adventure that would have my family cheering for seconds!
Why You'll Love This Recipe
- This Arby’s roast beef sandwich recipe offers a simple way to bring restaurant-quality flavor home
- Customize it with your favorite toppings for added fun
- The rich aroma and juicy beef make it irresistible on any occasion
- Perfect for game days or cozy nights in with family and friends
When I served my homemade version to my family, their delighted expressions were all the feedback I needed; they gobbled it up faster than I could plate them!

Essential Ingredients
Here’s what you’ll need to make this delicious dish:
Thinly Sliced Roast Beef: Look for high-quality deli meat or roast your own for the best flavor and texture.
Sesame Seed Buns: A classic choice that adds a delightful crunch and nutty flavor to your sandwich.
Beef Broth: Use low-sodium beef broth to keep the flavors rich without overwhelming saltiness.
Sliced Onions: Caramelize them for sweetness or use raw for extra crunch—your choice!
Cheddar Cheese: Melts beautifully over warm roast beef; choose sharp cheddar for more flavor.
The full ingredients list, including measurements, is provided in the recipe card directly below.
Let’s Make it together
Prepare yourself for an epic journey into the heart of roast beef goodness.
Gather Your Ingredients: Begin by assembling all your ingredients on the countertop. This makes cooking smoother and less chaotic—no one wants to be scrambling around looking for mustard mid-sandwich assembly.
Add Flavor with Beef Broth: In a medium saucepan over medium heat, pour in about 1 cup of beef broth. Allow it to warm until it’s steaming but not boiling—this enhances the flavor of our lovely roast beef.
Carmelize Your Onions (Optional): If you’re feeling fancy, slice an onion thinly and add it to the saucepan with a bit of butter. Sauté until golden brown and beautifully aromatic. This step can elevate your sandwich from good to gourmet!
Warm Up That Roast Beef: Add your thinly sliced roast beef directly into the broth mixture. Let it simmer gently for about 5 minutes until heated through and infused with that rich broth flavor.
Toast Those Buns!: While waiting on the beef, pop your sesame seed buns into the toaster or under the broiler until they are lightly golden. This gives them a satisfying crunch that elevates every bite.
Assemble Your Masterpiece: Layer that delicious roast beef onto one half of each bun. Top generously with caramelized onions and slices of cheddar cheese before closing up with the other half of the bun.
Enjoy your creation while it’s warm—the gooey cheese melting into tender meat is nothing short of divine!
Serve your homemade Arby’s roast beef sandwiches alongside crispy fries or a fresh salad for a meal that’ll have everyone raving!
You Must Know
- The Arby’s roast beef sandwich recipe delivers more than just nostalgia; it’s an experience
- The juicy beef, tangy sauce, and soft bun create a symphony of flavors, making it perfect for any occasion
- Plus, you can easily modify the ingredients to suit your taste!
Perfecting the Cooking Process
Start by slow-roasting the beef until tender. While it roasts, prepare your sauce and buns for an effortless assembly.

Add Your Touch
Feel free to swap out the roast beef for turkey or add some jalapeños for a spicy kick. Customize as you like!
Storing & Reheating
Store leftovers in an airtight container in the fridge for up to three days. Reheat gently in the oven to maintain quality.
Chef's Helpful Tips
- For a juicy roast, use a meat thermometer to ensure your beef reaches 135°F
- Avoid overcooking, as it can dry out the meat
- Don’t skip the resting time; it allows juices to redistribute for maximum flavor
Sometimes I wonder if my friends love my cooking or just come over for this sandwich. One time, I made extra and they devoured every last bite—no leftovers!

FAQ
What type of beef is best for this Arby’s roast beef sandwich recipe?
Choose top round or eye of round for lean, flavorful cuts that become tender when cooked slowly.
Can I make this recipe without a slow cooker?
Absolutely! You can roast the beef in your oven at low heat for similar results.
How do I enhance the flavor of the roast beef?
Marinating the beef overnight with spices can add depth and richness to your sandwich flavor profile.

Arby’s Roast Beef Sandwich
Indulge in the classic taste of Arby’s roast beef sandwich right at home with this easy recipe. Featuring tender, thinly sliced roast beef, melted cheddar cheese, and caramelized onions on a toasted sesame seed bun, this mouthwatering creation offers comfort food at its best. Perfect for game days or cozy family dinners, each bite delivers rich flavors that will leave everyone asking for more.
- Total Time: 30 minutes
- Yield: Serves 4
Ingredients
- 1 lb thinly sliced roast beef
- 4 sesame seed buns
- 1 cup low-sodium beef broth
- 1 medium onion, sliced
- 4 oz sharp cheddar cheese, sliced
- 2 tbsp butter (optional for caramelizing onions)
Instructions
- Assemble all ingredients on your countertop.
- In a medium saucepan over medium heat, warm the beef broth until steaming.
- If desired, melt butter in the saucepan and sauté the sliced onion until golden brown.
- Add the roast beef to the broth and simmer for about 5 minutes until heated through.
- Toast the sesame seed buns until lightly golden.
- Layer warm roast beef on the bottom half of each bun, top with caramelized onions and cheddar cheese, then close with the other half.
- Serve immediately alongside fries or salad.
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Category: Main
- Method: Cooking
- Cuisine: American
Nutrition
- Serving Size: 1 sandwich (220g)
- Calories: 450
- Sugar: 3g
- Sodium: 800mg
- Fat: 22g
- Saturated Fat: 10g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 34g
- Fiber: 2g
- Protein: 30g
- Cholesterol: 80mg






