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Sunny's Meaty Cheesy Casserole Sliders

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  • Level: Easy
  • Total: 45 min
  • Active: 10 min
  • Yield: 12 sliders
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1 package dinner rolls (12)

1 tablespoon steak seasoning 

1 pound thinly sliced deli roast beef 

8 ounces shredded processed Cheddar cheese 

4 ounces shredded provolone cheese 

1/4 cup chipotle mayonnaise 

2 scallions, white and green parts, chopped

1/2 cup (1 stick) unsalted butter, melted 

2 tablespoons onion pulp (grated on a rasp)

2 tablespoons grated Parmesan cheese 

1 tablespoon Worcestershire sauce 

1/2 teaspoon red chili flakes 

12 pickled sweet or hot pepper slices 


  1. Preheat the oven to 350 degrees F.
  2. Slice the rolls in half and place the bottom half of the rolls in a 13-by-9-inch baking dish. Season the bread with the steak seasoning and arrange the roast beef on top in mounds. Top with the shredded Cheddar.
  3. In a medium bowl, combine the provolone, mayonnaise and scallions. Spread this mixture on the cut sides of the top portion of the rolls. Place the tops spread-side down in the dish on top of the Cheddar.
  4. Mix the butter, onion, Parmesan, Worcestershire and red chili flakes in a bowl. Pour over the top of the rolls. Cover with foil and bake 25 minutes. Remove the foil and place a pepper slice on top of each sandwich. Bake 5 minutes more to toast the roll tops. The sandwiches will be extremely hot; rest a few minutes before serving.