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5 from 2 votes

Cheesy Baked Roast Beef Sliders

Roast beef sandwiches topped with a tangy Dijon mustard sauce and loaded with mozzarella and provolone cheese.
Course Main
Cuisine American
Keyword cheese, roast beef, sliders
Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings 10
Calories 218kcal
Author Dee


  • 1 pound roast beef sliced thin
  • 1/4 cup mayonnaise
  • 1 tablespoon Dijon mustard
  • 1/2 teaspoon dried minced onions
  • 1/2 teaspoon garlic powder
  • 10 slices provolone cheese
  • 1/2 cup finely shredded mozzarella cheese
  • 10 in slider buns or dinner rolls sliced half
  • 1 tablespoon melted butter


  • Preheat oven to 375 degrees
  • In a small bowl, mix the Diijon mustard, mayo, onions and garlic powder until smooth
  • Open rolls, and arrange the rolls on a baking sheet
  • Add some beef to bottom half of each roll
  • Top beef with mustard sauce, and spread some on rolls, if desired
  • Add provolone cheese to the top bun, and bake openfaced for about 5 min or until cheese starts to melt
  • Top beef with shredded mozzarella, close sandwiches, brush top of buns with butter, cover and bake for another 5 minutes, or until cheese is fully melted
  • Serve immediately


Calories: 218kcal | Carbohydrates: 2g | Protein: 19g | Fat: 14g | Saturated Fat: 6g | Cholesterol: 51mg | Sodium: 1045mg | Potassium: 175mg | Vitamin A: 310IU | Vitamin C: 20.6mg | Calcium: 397mg | Iron: 1.2mg