If you’re on the hunt for a crowd-pleaser that’s both comforting and easy to make, this Roast Beef Sliders Recipe is going to be your new best friend. Think tender, thinly sliced roast beef layered with melty cheese and that irresistible hint of horseradish sauce, all nestled inside soft slider buns that are brushed with buttery garlic goodness. These little sandwiches pack big flavor in every bite, perfect for everything from casual get-togethers to game day indulgences. Once you try this Roast Beef Sliders Recipe, it’ll quickly become your go-to when feeding a hungry crowd or simply craving a hearty sandwich that hits all the right notes.

Ingredients You’ll Need
Getting the ingredients right is what makes this Roast Beef Sliders Recipe truly shine. Each component is simple yet essential, bringing together textures and flavors that create the perfect bite every time. From the soft buns and juicy roast beef to the flavorful sauce and buttery topping, these ingredients are the backbone of slider greatness.
- 12 slider buns: Soft and pillowy buns hold everything together perfectly without overpowering the filling.
- 1 pound thinly sliced roast beef: Tender and savory, it’s the main star that delivers the rich meaty flavor.
- 12 slices of cheese (provolone, Swiss, or cheddar): Meltable cheese adds gooey texture and creamy richness to each slider.
- 1/2 cup caramelized onions (optional): Adds a sweet, slightly tangy depth to balance the savory beef.
- 1/4 cup horseradish sauce or Dijon mustard sauce: A kick of heat and tang that wakes up every bite.
- 2 tablespoons butter, melted: Coats the buns with a garlic-infused golden layer for irresistible aroma and crispness.
- 1 teaspoon garlic powder: Enhances the buttery topping with a warm, savory note.
- 1 teaspoon poppy seeds (optional): Adds a subtle crunch and pretty finishing touch to the bun tops.
How to Make Roast Beef Sliders Recipe
Step 1: Preheat the oven
Start by setting your oven to 350°F (175°C). This moderate temperature ensures the cheese melts perfectly and the buns toast just enough without drying out the roast beef.
Step 2: Prepare the buns
Carefully slice the slider buns horizontally to create a top and bottom half. Arrange the bottom halves snugly in your baking dish. This foundation keeps all the tasty fillings in place and helps the sliders bake evenly.
Step 3: Layer the ingredients
Spread your choice of horseradish or Dijon mustard sauce onto each bottom bun. This adds a wonderful zing beneath the beef. Next, pile on the thinly sliced roast beef followed by a slice of your preferred cheese. If you’re feeling adventurous, add caramelized onions for a savory-sweet surprise.
Step 4: Top and season
Place the top halves of the buns over the layered fillings. Now mix the melted butter with garlic powder and generously brush this mixture over the bun tops. Sprinkle poppy seeds across the buttery surface if you want a bit of added texture and visual appeal.
Step 5: Bake to perfection
Cover the dish with aluminum foil and slide it into the preheated oven. Bake for about 10 minutes or until the cheese is beautifully melted. For an irresistible crust, remove the foil during the last 2 minutes to let the tops crisp up delightfully.
Step 6: Serve warm
These sliders are best enjoyed fresh and warm right out of the oven, where the cheese is gooey and the flavors meld perfectly. They’re a surefire hit for quick lunches, parties, or whenever you need a satisfying bite.
How to Serve Roast Beef Sliders Recipe

Garnishes
Adding a few fresh garnishes can elevate your Roast Beef Sliders Recipe even more. Try sprinkling chopped fresh parsley or chives for a burst of color and light herbal note. Pickles or a few thin slices of cucumber on the side balance richness with crunch and acidity.
Side Dishes
Classic sides like crispy French fries or a crisp green salad complement these sliders beautifully. For a heartier meal, creamy coleslaw or roasted vegetables create a satisfying contrast of textures and flavors. Whatever you choose, keep the sides simple to let the sliders shine.
Creative Ways to Present
Want to impress guests? Arrange the sliders on a rustic wooden board with little bowls of extra horseradish sauce and mustard for dipping. You could also serve them on mini skewers to make grabbing and eating easy at parties. Wrapping each slider in parchment paper gives a charming touch and keeps things tidy.
Make Ahead and Storage
Storing Leftovers
If you happen to have leftovers, store them in an airtight container in the refrigerator for up to 2 days. To prevent the buns from becoming soggy, place a paper towel at the bottom of the container to absorb excess moisture.
Freezing
You can freeze fully assembled but unbaked sliders by wrapping them tightly in plastic and then foil. They freeze well for up to 1 month. When ready to enjoy, thaw overnight in the refrigerator before baking as usual.
Reheating
Reheat your leftover roast beef sliders in the oven at 325°F (160°C) for about 10 minutes. This returns some crispness to the buns and warms the filling evenly without drying out the meat.
FAQs
Can I use different types of cheese for this Roast Beef Sliders Recipe?
Absolutely! Provolone, Swiss, and cheddar are all fantastic choices, but feel free to experiment with mozzarella, gouda, or your favorite melty cheese to suit your taste.
Is there a vegetarian alternative to the roast beef in this recipe?
You can swap the roast beef for grilled portobello mushrooms or a hearty plant-based deli slice for a delicious vegetarian version with all the flavor and texture.
Can I make these sliders gluten-free?
Yes! Simply substitute slider buns with gluten-free rolls or bread. Just be mindful of the sauces you choose to ensure they don’t contain gluten ingredients.
What can I use instead of horseradish sauce?
If horseradish isn’t your thing, Dijon mustard, mayonnaise, or a creamy garlic aioli all work beautifully to add moisture and flavor to the sliders.
How do I prevent the sliders from getting soggy after baking?
Brushing melted butter on the buns before baking helps create a moisture barrier. Also, serve the sliders soon after baking and avoid storing them too long before reheating.
Final Thoughts
There is something so satisfying about the combination of tender roast beef, melted cheese, and buttery buns that makes this Roast Beef Sliders Recipe a total winner every time. Whether you’re feeding a crowd or treating yourself to a flavorful mini sandwich, these sliders bring comfort and joy with every bite. I can’t wait for you to make them and enjoy every delicious moment just like I do!
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Roast Beef Sliders Recipe
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Total Time: 20 minutes
- Yield: 12 sliders
- Category: Sandwich
- Method: Baking
- Cuisine: American
Description
These Roast Beef Sliders are easy-to-make, flavorful mini sandwiches perfect for gatherings or a quick meal. Featuring thinly sliced roast beef, melted cheese, and optional caramelized onions, all nestled in soft slider buns and baked to gooey perfection with a garlic butter topping.
Ingredients
Slider Components
- 12 slider buns
- 1 pound thinly sliced roast beef
- 12 slices of cheese (provolone, Swiss, or cheddar)
- 1/2 cup caramelized onions (optional)
Sauces & Toppings
- 1/4 cup horseradish sauce or Dijon mustard sauce
- 2 tablespoons butter, melted
- 1 teaspoon garlic powder
- 1 teaspoon poppy seeds (optional)
Instructions
- Preheat the Oven: Set your oven to 350°F (175°C) to ensure it reaches the perfect temperature for baking the sliders.
- Prepare the Buns: Slice the slider buns horizontally in half and arrange the bottom halves in a baking dish, creating a flat base for the sandwich layering.
- Layer the Ingredients: Spread your choice of horseradish sauce or Dijon mustard over the bottom halves. Add a layer of thinly sliced roast beef, followed by a slice of your preferred cheese. Add caramelized onions if using, for an extra depth of flavor.
- Top and Season: Place the top halves of the buns on the layered ingredients. Combine melted butter with garlic powder, then brush this mixture generously over the top buns. Sprinkle poppy seeds on top if desired for added texture and flavor.
- Bake the Sliders: Cover the baking dish with foil and bake for 10 minutes, just until the cheese melts thoroughly. To crisp the tops, remove the foil for the last 2 minutes of baking.
- Serve Warm: Remove from the oven and serve the sliders immediately while warm, ensuring maximum flavor and enjoyment.
Notes
- Caramelized onions add a sweet, rich flavor but can be omitted if preferred.
- You can use any type of cheese that melts well, like provolone, Swiss, or cheddar.
- For a spicier kick, choose horseradish sauce over Dijon mustard.
- Brush the tops generously with garlic butter for optimal flavor and moisture.
- Sliders are best served immediately but can be reheated covered in the oven to preserve softness.

