Roast Beef Sliders

Prep time: 20 min
Cook time: 20 min
Servings: 12
Yield: 12 servings

Description

This roast beef sliders recipe starts with provolone, mushrooms, peppers, and onion layered onto buns, brushed with seasoned melted butter, and then baked.

Ingredients

1 serving cooking spray
12 slider buns
1 pound thinly sliced deli roast beef
1 (8 ounce) package thinly sliced provolone cheese
1 tablespoon vegetable oil
1 small onion, diced
1 green bell pepper, diced
1/2 cup sliced mushrooms
2 tablespoons unsalted butter, melted
1/4 teaspoon garlic powder
1/4 teaspoon adobo seasoning
1/4 teaspoon Italian seasoning

Directions

1 Preheat the oven to 350 degrees F (175 degrees C). Coat a 9x13-inch baking dish with cooking spray.
2 Slice buns in half vertically, leaving buns attached as a sheet. Peel off attached top sheet buns and set aside; place attached bottom sheet buns in the prepared dish. Layer roast beef and cheese across buns.
3 Heat oil in a small skillet over medium-high heat. Add onion, bell pepper, and mushrooms; cook until soft, about 5 minutes. Spread onion mixture over beef and cheese; place top sheet buns on top.
4 Combine melted butter, garlic powder, adobo seasoning, and Italian seasoning; brush on tops of buns, pouring any extra over sides.
5 Bake in the preheated oven until cheese starts to melt, about 15 minutes. Separate each bun into a sandwich using a serrated knife. Serve hot.