Name: Roast Beef Sliders with Dijon Sauce
Prep time: 10 min
Cook time: 5 min
Total time: 15 min
Yield: 4 Servings
Cuisine: American

It is a Keeper Verified

February 17, 2026

These Roast Beef Sliders with Dijon Sauce are perfection in a miniature form. Ditch the boring routine and embrace the fun with these delicious Roast Beef Sliders. They’re guaranteed to be a crowd-pleaser, perfect for any occasion, and surprisingly simple to make. These luscious sandwiches with roast beef slices on the bottom of soft slider rolls with the addition of cheese and caramelized onions and a tangy dijon sauce is a true favorite.

Roast Beef Sliders with Dijon Sauce cover

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Roast Beef Sliders with Dijon Sauce

It is a Keeper Verified

Ingredients

WarningMilk and 5 other allergens identified

Instructions

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Instructions

Preheat oven to 375℉.

In a small bowl combine mayonnaise, Dijon mustard, Worcestershire sauce, onion powder and garlic powder until smooth. Set aside.

Lay out the bottom of buns or rolls on a rimmed baking sheet

Brush a little bit of the sauce on the buns

Next, layer on the roast beef and one piece of the cheese

Place sliders in oven for five minutes to melt cheese

While the cheese is in the oven melting brush the tops of the buns liberally with sauce

Remove tray from oven and then place on tops

Brush melted butter over the top and then place in oven for an additional five minutes

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Tips & Tricks (5)

Butter Brush Magic 🧈
Brush slider rolls with a mixture of melted butter, garlic powder, and Worcestershire sauce before toasting for extra depth of flavor and a golden, crispy exterior.
Sauce Balance Technique 🥄
Mix Dijon mustard and mayonnaise in a 2:1 ratio to create a perfectly balanced sauce that's tangy yet creamy, with just the right amount of kick.
Beef Slice Pro Tip 🥩
Ask your deli to slice roast beef ultra-thin and slightly warm to ensure maximum tenderness and easier rolling/stacking on sliders.
Cheese Melting Hack 🧀
Cover sliders with foil for the last 2-3 minutes of heating to create perfectly melted provolone that doesn't dry out or become rubbery.
Caramelization Shortcut 🔥
If short on time, use pre-caramelized onions from the grocery store or quickly sauté onions with a pinch of sugar to achieve deep, rich flavor in minutes.

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About the Cook

It is a Keeper

Hi! I’m Christina… welcome to my kitchen! It’s so nice to meet you! I share tried and true recipes that anyone can make. I believe, if you can read, you can cook.