Skip to Content

French Dip Sliders

*This post may contain affiliate links. As Amazon Associates we earn from qualifying purchases.

Whether it’s game day or an end of summer backyard get together, these French Dip Sliders cover all the bases! Bite-sized sandwiches loaded with roast beef, melted cheese, and sweet onions served with savory au jus. What a winning combination!

Close up of a french dip slider and au jus sauce.

French Dip Sliders

These French Dip Sliders really are a classic! The perfect combination of hearty roast beef, gooey cheese, sweet and spicy onions, served with a side of savory Au Jus. Make a batch for Labor Day or Opening Day to celebrate your favorite team getting back on the field!

Sliders are the perfect snack to fit in your hand, and trust me – you’ll have to stop yourself from eating the whole tray. Just be sure to grab a napkin because these flavors just can’t be contained!

Typically, French Dip sandwiches are made by slow cooking roast beef and using the drippings from the meat to create the au jus. Our recipe opts for roast beef right from the deli and is topped with a seasoned salt mustard sauce for an extra touch. This recipe might be quick and simple, but it certainly doesn’t skimp out on any of the classic flavors!

French dip slider being lifted out of a pan.

Key Ingredients

For the Sliders:

  • Slider Buns: You’ll need 12 slider buns any variety you like.
  • Provolone Cheese: 12 slices, or more if you want extra cheesy slices!
  • Deli Roast Beef: About 1 pound, sliced. I love buying this meat from the deli because it saves so much time!
  • White Onions: Thinly sliced works best. Also, yellow onions will also work in a pinch. 

For the Dressing:

  • Butter: Make sure to get unsalted for this recipe, as we’ll also be using seasoned salt.
  • Worcestershire Sauce: Tangy, savory, sweet, and salty. This blends perfectly with the Dijon mustard.
  • Dijon Mustard: The bold flavor this adds is perfection.
  • Garlic Powder and Onion Powder: You can’t have a savory sandwich like this without garlic and onion powder.
  • Seasoned Salt: To taste.

How To Make French Dip Sliders

For the Sliders:

  1. Preheat the oven to 350°F.
  2. Leave the slider buns intact and slice them in half lengthwise. Place the bottom half of the buns into a 9 x 13-inch baking dish.
  3. Lay the cheese slices over the buns, then top with the sliced roast beef. Add the onions, and place the tops of the buns back onto the sliders. Set aside.

For the Mustard Sauce:

  1. In a small saucepan over low heat, melt the butter. Stir in the Worcestershire sauce, mustard, garlic powder, onion powder, and seasoned salt.
  2. Pour the mixture over the sliders.
  3. Bake uncovered for 10 to 15 minutes until the cheese is melted and the tops are golden brown.
  4. Use a sharp knife to separate the sliders. Serve hot with a side of au jus. Either homemade or store bought works great!
Collage showing how to make french dip sliders.

Tips and Variations

  • These sliders work great with leftover pot roast for a simple and time saving alternative.
  • Add a little brown sugar to the mustard sauce for a sweet and savory flavor.
  • Change up the type of cheese like swiss or gouda, or a yellow or stone ground mustard to combine and create new flavors. 
  • Add a pickle for a fun crunch!
French dip sliders with provolone cheese.

Storage and Reheating

Refrigerator: Store these French Dip Sliders in a sealed container for up to 2 days in the fridge.

Reheating: When reheating, wrap the sandwich(es) in foil and place on the top oven rack. Heat for about 7-10 minutes until the cheese has melted and sandwiches are warmed through.

Two sliders on a plate with au jus.

French Dip Sliders

Yield: 12 Sliders
Prep Time: 10 minutes
Cook Time: 15 minutes
Total Time: 25 minutes

Whether it’s game day or an end of summer backyard get together, these French Dip Sliders cover all the bases! Bite-sized sandwiches loaded with roast beef, melted cheese, and sweet onions served with savory au jus. What a winning combination!

Ingredients

Sliders

  • 12 count slider buns
  • 8 ounces provolone cheese, sliced
  • 1 pound deli roast beef, sliced
  • ½ cup white onions, thinly sliced

Dressing

  • ½ cup unsalted butter
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon Dijon mustard
  • ½ teaspoon garlic powder
  • ¼ teaspoon onion powder
  • ¼ teaspoon seasoned salt

Instructions

    1. Preheat the oven to 350°F.

    Sliders:

    1. Leave the slider buns intact, and slice them in half lengthwise. Place the bottom half of the buns into a 9 x 13-inch baking dish. 
    2. Lay the cheese slices over the buns, then top with the onions and sliced roast beef. Place the tops of the buns onto the sliders. Set aside.

    Sauce:

    1. In a small saucepan over low heat, melt the butter. Stir in the mustard, garlic powder, onion powder, and seasoned salt. 
    2. Pour the mixture over the sliders.
    3. Bake uncovered for 10 to 15 minutes until the cheese is melted and the tops are golden brown.
    4. Use a sharp knife to separate the sliders. Serve hot with a side of au jus.
    5. See post for storage recommendations.

    Notes

    *The mustard sauce is intended to be poured over the sliders and baked. It's not used as a dipping sauce.

    *The au jus in the photos is store bought, but a homemade version would taste amazing with this recipe.

    *The calories listed are an approximation based on the ingredients in the recipe card and a serving size of 1 slider. Actual calories will vary.

    *For more information, tips, and answers to frequently asked questions, please refer to the post.

    Recommended Products

    As an Amazon Associate and member of other affiliate programs, I earn from qualifying purchases.

    Nutrition Information:
    Yield: 12 Serving Size: 1 slider
    Amount Per Serving: Calories: 264Total Fat: 15gSaturated Fat: 9gTrans Fat: 0gUnsaturated Fat: 6gCholesterol: 53mgSodium: 685mgCarbohydrates: 16gFiber: 1gSugar: 3gProtein: 16g

    *The calories are an estimate and are based on the ingredients and serving size listed. The calories can vary depending on the brand of product purchased.

    Don't forget to follow us on Pinterest!

    Share this recipe by clicking the Pinterest button below!

    Frozen Peanut Butter Pie
    ← Previous
    Amaretto Coffee
    Next →
    Skip to Recipe