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French Onion Roast Beef Sliders

French Onion Roast Beef Sliders

These roast beef sandwiches are anything but ordinary, thanks to crunchy Frenched onions and Gruyère cheese.

Calories
267
Carbohydrates
47g
Protein
8g
Potassium
539mg
Fiber
7g
Sugar
13g

Ingredients

  • 1 (12-ounce) package Hawaiian sweet rolls (such as King’s Hawaiian)

  • 6 tablespoons unsalted butter, softened

  • 2 teaspoons dried minced onion

  • 1 teaspoon fresh thyme leaves

  • 1/8 teaspoon black pepper, plus more to taste

  • 8 ounces thinly sliced deli roast beef

  • Frenched Onions

  • 4 ounces thinly sliced Gruyère cheese

  • 1/4 teaspoon flaky sea salt

Direction

  1. Preheat oven to 350°F. Keeping sheet of rolls intact, cut in half crosswise, separating top buns from bottom buns. Place bottom buns in a 9- x 9-inch baking pan, cut side up. Set aside top buns.

  2. Stir together butter, dried onion, thyme leaves, and pepper in a small bowl. Spread half of the butter mixture evenly over bottom buns; top evenly with roast beef, Frenched onions, and Gruyère slices. Place top buns over Gruyère. Spread remaining butter mixture evenly over top buns; sprinkle with flaky sea salt.

  3. Cover pan tightly with aluminum foil. Bake sliders until Gruyère is melted, about 20 minutes. Uncover and bake until top buns are lightly toasted, 5 to 8 minutes. Transfer sliders to a serving platter. Serve hot.

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