Roast Beef Sliders

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

• Preparation Time: 20 mins
• Cooking Time: 20 mins
• Total Time: 40 mins
• Calories: 222 Calories

Ingredients

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

Recipe Instructions

Step 1

Preheat the oven to 350 degrees F (175 degrees C). Coat a 9x13-inch baking dish with cooking spray.

Step 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.

Step 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.

Step 4

Combine melted butter, garlic powder, adobo seasoning, and Italian seasoning; brush on tops of buns, pouring any extra over sides.

Step 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.