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A hand holding a roast beef slider with melted cheese, and a soft bun, with more sandwiches in a dish below.
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Roast Beef Sliders Recipe with Horseradish Sauce

These roast beef sliders are so good be prepared for your family to fight over the last one. The horseradish sauce packs just the right punch, while the gouda-swiss combo creates that Insta-worthy cheese pull everyone's obsessed with.
One pan, 25 minutes, zero flipping required. Fair warning: double the batch because these disappear faster than you think.
Prep Time10 minutes
Cook Time15 minutes
Total Time25 minutes
Course: Appetizer, Main Course
Cuisine: American
Servings: 6 servings
Calories: 270kcal
Author: Kita Roberts

Equipment

  • 9x13 casserole dish
  • Parchment paper or cooking spray
  • Small bowls (for aioli & butter topping)
  • Pastry brush (or spoon)
  • Serrated knife

Ingredients

For the Horseradish Sauce:

  • ⅓ cup mayonnaise
  • 2 Tablespoons prepared horseradish
  • 1 teaspoon garlic minced

For the Roast Beef Sliders:

  • 1 12-pack Hawaiian rolls
  • ½ pound roast beef We love using thinly sliced smoked roast beef or leftover prime rib.
  • 3 slices gouda cheese
  • 3 slices swiss cheese
  • 2 Tablespoons salted butter
  • 1 teaspoon Italian seasoning
  • 1 teaspoon Worcestershire sauce
  • 1 Tablespoon everything bagel seasoning

Instructions

Prep the oven:

  • Preheat your oven to 350°F and line a 9x13 casserole dish with parchment paper (or spray with cooking spray).

Make the horseradish sauce:

  • In a small bowl, make the horseradish aioli by stirring together the mayonnaise, horseradish, and garlic until well combined.
    A small white bowl filled with creamy horseradish sauce sits on a light gray surface, with a black spatula featuring a wooden handle resting inside.

Make the Roast Beef Sliders:

  • Slice the Hawaiian rolls in half lengthwise and place the bottom half in the casserole dish.
  • Place an even layer of the roast beef, top with cheese (alternating each flavor), and set aside.
    A white baking dish containing slices of roast beef arranged on top of pieces of bread.
  • Spread the aioli on top of the cheese and place the top bun over the meat and cheese to create a sandwich.
    A white baking dish containing layers of sliced roast beef, cheddar and Swiss cheese, topped with a creamy horseradish sauce.
  • Melt the butter in the microwave and stir in the Italian seasoning and Worcestershire sauce.
  • Brush the melted butter onto the buns and sprinkle with everything bagel seasoning.
    A silicone brush is spreading butter on top of slider buns in a white baking dish.

Bake and Serve:

  • Bake uncovered for 10-12 minutes. Then carefully cover with foil to prevent too much browning, and bake for another 5 minutes until golden brown, the cheese is melted, and the buns are a deep golden brown.
  • Carefully remove from the oven and let rest for 5 minutes to cool. Enjoy warm.
    A white baking dish contains twelve golden-brown slider buns topped with sesame seeds, surrounded by bowls of spices, plates, and a blue napkin.

Notes

  • Fold the roast beef instead of laying it flat. Thin layers will pull out when you bite, but folding keeps the meat stacked so every bite is meaty and satisfying.
  • Add caramelized onions for a serious flavor upgrade. Sweet, jammy onions pair perfectly with the roast beef and melty cheese.
  • Keep an eye on the buns. If they brown too quickly, cover with foil for the last few minutes.
  • Slice with a serrated knife for clean cuts without squishing the rolls.
  • Sauce on the cheese, not the bread. This keeps the sauce creamy and stops the bread from going soggy.

Nutrition

Serving: 1serving | Calories: 270kcal | Carbohydrates: 4g | Protein: 15g | Fat: 22g | Saturated Fat: 9g | Polyunsaturated Fat: 6g | Monounsaturated Fat: 5g | Trans Fat: 0.2g | Cholesterol: 63mg | Sodium: 996mg | Potassium: 160mg | Fiber: 0.3g | Sugar: 2g | Vitamin A: 286IU | Vitamin C: 19mg | Calcium: 299mg | Iron: 1mg