Why You’ll Love Roast Beef Sliders Recipe

Big flavor, minimal effort: the zesty horseradish‑green onion sauce and melted provolone give these sliders a gourmet feel, without hours in the kitchen.
Versatile: they work for dinners, lunch leftovers, tailgates, potlucks or holiday gatherings.
Make‑ahead friendly: you can assemble ahead of time and bake when ready; leftovers reheat beautifully.
Crowd‑pleaser: the combination of roast beef, cheese, and buttery poppy‑seed topping appeals to many tastes.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

Hawaiian rolls (12‑pack)
Shaved or thinly sliced roast beef
Sliced provolone cheese
Mayonnaise
Sour cream
Prepared horseradish
Green onions (thinly sliced)
Unsalted butter (melted)
Fresh garlic (crushed)
Worcestershire sauce
Wholegrain mustard (or Dijon)
Onion powder
Garlic powder
Poppy seeds
Salt and pepper

Directions

Preheat your oven to 350°F (≈175°C).
In a medium mixing bowl, combine the mayonnaise, sour cream, prepared horseradish and green onions; season with salt and pepper to taste.
Slice the Hawaiian rolls in half lengthwise (keeping the top and bottom intact as one piece each). Place the bottom half on a baking sheet or rectangular pan.
Spread about half of the horseradish‑green onion mixture evenly over the bottom half of the rolls.
Layer the sliced roast beef evenly over the sauce‑coated bottom rolls. Then place the provolone slices on top of the beef.
Spread the remaining horseradish‑green onion mixture onto the top half of the rolls and place it over the assembled bottom.
In a small mixing bowl combine the melted butter, crushed garlic, Worcestershire sauce, mustard, onion powder and garlic powder. Stir to combine.
Brush the seasoned butter mixture generously over the top of the rolls. Then sprinkle the poppy seeds across the top.
Cover the pan with aluminum foil and bake at 350°F for about 30‑35 minutes, until the cheese is melted and the rolls are golden brown.
Remove from the oven, slice into individual sliders, serve warm and enjoy immediately.

Servings and timing

Serves: 12 sliders
Prep time: 10 minutes
Cook time: 35 minutes
Total time: 45 minutes

Variations

Swap the provolone for Swiss, cheddar or pepper jack for a different cheese flavor.
Use mini brioche buns or dinner rolls instead of Hawaiian rolls.
Increase or decrease the horseradish depending on how spicy you like it; you can also add a pinch of cayenne for extra heat.
Add caramelized onions or sautéed mushrooms for extra texture and flavor.
Use thinly sliced leftover roast beef or even steak strips to adapt based on what you have.
For a vegetarian twist, substitute roast beef with seasoned grilled portobello mushrooms or a plant‑based roast alternative, and use veggie slices in place of the meat.

Storage/Reheating

Storage: After cooling to near room temperature, cover the slider pan tightly with foil or plastic wrap and refrigerate. They’ll keep for up to 3–4 days.
Reheating: For best results, reheat in an air fryer or in the oven. Cover with foil and reheat at a low temperature (around 300‑325°F / 150‑160°C) until warmed through and the cheese melts again. Avoid the microwave if possible, as the rolls may become soggy.

FAQs

What kind of bread is best for these sliders?

Soft rolls like Hawaiian rolls work ideal because they stay fluffy, hold up to the fillings, and toast nicely in the oven. Other suitable options: dinner rolls, mini brioche buns, soft potato rolls or other pull‑apart rolls.

Can I make these ahead of time?

Yes — you can assemble the sliders a few hours in advance, refrigerate them covered, and then bake when you’re ready. The flavor holds up well.

Can I adjust the heat level?

Absolutely. If you prefer milder, reduce or omit the horseradish. For more heat, add extra horseradish or a pinch of cayenne pepper.

What’s the best way to reheat leftovers?

The best reheating methods are an air fryer or the oven. Cover with foil to retain moisture and heat until warmed through. The microwave works in a pinch but may make the rolls soggy.

Can I use a different cheese?

Yes — provolone gives a nice mild-melting character, but you could use Swiss, sharp cheddar, pepper jack or another cheese of your choosing.

Is this suitable for a crowd or party?

Definitely — the recipe is great for potlucks, tailgates or gatherings. You can easily double the batch if needed and keep them warm in a low oven for serving.

What if I don’t have roast beef on hand?

You could use thinly sliced steak, leftover roast, or even a quality deli roast beef. For a non‑beef version, try grilled mushrooms or a plant‑based roast alternative.

Can I skip the poppy seeds or mustard topping?

Yes — the poppy seed‑butter topping adds a nice texture and flavor but it’s optional. If you skip it, you may want to brush the top of the rolls with plain melted butter and seasoning.

Will these sliders work for lunch the next day?

Yes — in fact, many folks say they taste even better the next day when reheated. Great for meal‑prep lunches.

Conclusion

With minimal fuss and maximum flavor, these roast beef sliders deliver a satisfying meal that’s perfect for everyday dinners or special occasions alike. The combination of a creamy horseradish‑green onion sauce, tender roast beef, melted provolone and buttery, poppy‑seed‑topped rolls hits all the right notes. Whether you’re feeding a crowd, prepping ahead or simply looking for a flavorful sandwich alternative, this recipe is sure to impress. Enjoy!