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4.06 from 37 votes

French Onion Roast Beef Sliders Recipe

Looking for a crowd-pleasing appetizer or main course? Try our irresistible French Onion Beef Sliders! These sliders pack big flavors, featuring tender roast beef smothered in rich caramelized onions for an unforgettable experience.
Prep Time10 minutes
Cook Time20 minutes
Total Time30 minutes
Course: Appetizer, Main Course, Snack
Cuisine: American
Keyword: appetizer, beef, dinner, french onion beef sliders, sandwich, sliders, snack
Servings: 12
Calories: 235kcal


  • 2 tablespoon unsalted butter *divided
  • 2 sweet onions *sliced
  • 2 teaspoon worcestershire sauce
  • 12 Hawaiian sweet rolls
  • 3/4 lb roast beef *shaved
  • 8 oz smoked cheddar cheese *grated
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • 1/2 tsp Chupacabra seasoning *or seasoning of choosing


  • Preheat oven to 350 degrees.
  • In a skillet, heat 1 tablespoon butter and add in onions.
  • Cook onions until browned and caramelized.
  • Stir in the worcestershire sauce and set aside.
  • Slice all the rolls in half horizontally.
  • Place the bottom half of the rolls onto a cookie sheet.
  • Top bottom half of rolls with roast beef.
  • Spread caramelized onions evenly over beef, followed by the grated cheese.
  • Place the top of rolls on top to create sandwiches.
  • Melt remaining 1 tablespoon butter in a small bowl and brush the butter on top of the sandwiches.
  • Sprinkle garlic/onion, seasoning on top of the sandwiches and cover cookie sheet lightly with aluminum foil.
  • Place cookie sheet into preheated oven and bake for about 15 minutes.
  • Remove foil and cook an additional 5 minutes.
  • Remove from oven and serve! Enjoy!


Calories: 235kcal | Carbohydrates: 20g | Protein: 14g | Fat: 11g | Saturated Fat: 7g | Trans Fat: 1g | Cholesterol: 51mg | Sodium: 643mg | Potassium: 174mg | Fiber: 1g | Sugar: 7g | Vitamin A: 249IU | Vitamin C: 16mg | Calcium: 229mg | Iron: 1mg
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