Name: Roast Beef Sliders
Total time: 35 min
Yield: 6 servings (12 sliders total)
Cuisine: American
Ingredients: 12 Hawaiian rolls or slider buns; ¾ cup horseradish mayo; 1 pound thin sliced deli roast beef or shaved roast beef; 8 ounces shredded mozzarella cheese about 2 cups; 2 teaspoons garlic salt; 2 teaspoons black pepper; 3 Tablespoons unsalted butter very softened; 1 Tablespoon poppy seeds

Roast Beef Sliders

Piled with roast beef and melty mozzarella cheese between a buttery sweet Hawaiian roll, these roast beef sliders are hands down the best appetizer for parties!

Total 35 minutes

Serves 6 servings (12 sliders total)

Appetizer, Dinner

American

Jump to the recipe

Piled with roast beef and melty mozzarella cheese between a buttery sweet Hawaiian roll, these roast beef sliders are hands down the best appetizer for parties!

Hand pulling up a Roast Beef Slider from a board with a cheese pull

Why this recipe works

Roast beef sliders leave a lasting impression, trust us. Horseradish mayo layered with sliced roast beef and melty mozzarella cheese sandwiched between slider buns and finally topped with garlic butter and poppy seeds make these mini sandwiches downright tantalizing.

Get creative with your toppings and follow your gut. Sauteed sliced potatoes and caramelized onions like we use in our classic roast beef sandwich are great toppers if you’re feeling fancy. Otherwise, an extra sprinkle of cheese and crispy onion straws will add texture and flavor as well. The additions are up to you here!

Ingredients you will need

Get all measurements, ingredients, and instructions in the printable version at the end of this post.

Ingredient Info and Substitution Suggestions

BEEF – Pick up some shaved or thinly sliced deli roast beef for this recipe.

CHEESE – You can use shredded or sliced mozzarella, provolone, Swiss, cheddar, or Gruyere.

BUNS – Hawaiian rolls are the perfect size for sliders, plus they add a subtle touch of sweetness. You can use regular slider buns if preferred.

How to Make Roast Beef Sliders

These step by step photos and instructions are here to help you visualize how to make this recipe. You can Jump to Recipe to get the printable version of this recipe, complete with measurements and instructions at the bottom.

Preheat oven to 350 F.
Grease a baking sheet with soft butter or cooking spray.
Using a bread knife, slice through the center of the slider buns to cut them in half.
Place the bottoms of the slider buns on the prepared baking sheet. Spread horseradish mayo on the tops of the slider buns.
On the bottom of the buns, layer on roast beef and top with mozzarella cheese.
Combine soft butter, garlic salt, and black pepper.
Place top buns in place and brush with softened butter mixture. Sprinkle with poppy seeds.
Bake uncovered in preheated oven for 20 minutes.
Remove from oven and let rest for 2-3 minutes, then use a sharp knife to slice through and separate sandwiches.

Frequently Asked Questions & Expert Tips

How do you store leftover roast beef sliders?

Leftover sliders can be stored in an air-tight container kept in the refrigerator for 3-4 days. The longer they sit in the fridge, the soggier the buns will become as they soak up the surrounding ingredients. Pop them in the air fryer using the reheat function to warm them back up. Or, reheat in a 350F oven covered with aluminum foil until warmed through.

Serving Suggestions

Serve roast beef sliders with potato chips, french fries, sweet potato fries, or coleslaw. Garnish the sliders with poppy seeds as well as optional onion straws, pickles, or caramelized onions. Pair with extra horseradish mayo or au just for dipping.

These sliders are great for all occasions, especially game day. Enjoy warm from the pan.