Cheesy Roast Beef Sliders with Au Jus

Cheesy Roast Beef Sliders are the perfect game day (or ANY day) snack or lunch or heck, even breakfast if you wanted. The roast beef is savory and tender, and the cheese is the perfect kind of melty and gooey that adds that desirable flavor. Just on their own, they’re delicious.

Level up this beef slider recipe by dipping them in some hot au jus, and serve them with some potato chips and a cool beverage, and you have the most EPIC meal that friends and family will ask for over and over and over.

Trust me on this one, I know.

The BEST Roast Beef Slider Recipe!

Ingredients and Substitutions

The ingredients are pretty straightforward and easily accessible for this recipe.

• Beef: So my favorite way to make these beef sliders is using leftover shredded beef from a roast I made beforehand. Usually, earlier in the week I’ll make my Instant Pot 3 Packet Roast or my Mississippi Roast recipe. Sometimes I will use my Ninja Foodi and pressure cook a tough cut of beef that turns out perfectly. If there are leftovers, people know what’s coming up on the menu. If you don’t have leftover roast beef, you can easily use store-bought deli roast beef to make things easier.
• Buns: I prefer to use tray buns for these sliders, but if you like your sliders using Hawaiian Rolls, by all means, use them! This beef slider recipe will work perfectly using those rolls!
• Cheese: I used sliced spicy pepper jack cheese and shredded mozzarella. Look below for additional ideas on other types of cheese to use.
• Butter
• Horseradish sauce: Optional, but highly recommended!
• Garlic
• Parsley
• Au Jus: This can come from the roast beef drippings from the previous meal, OR you can also purchase Au Jus packets that are excellent for dipping these yummy sliders into!

**The recipe card linked below gives exact amounts, directions, hints, and tricks for making this roast beef slider recipe perfect every time.

How to Make Roast Beef Sliders

PREP STEP: Be sure to start preheating your oven so by the time you have everything assembled, your French dip sliders are ready to go into the oven. Prepare your roasting dish with parchment paper for easy cleanup!

STEP ONE: Cut the tray buns in half HORIZONTALLY. Leave the bottom portion of the buns and set the top portion aside for the moment.

STEP THREE: Mix together the sauce and spread it over the buns on the tray, then line with the sliced cheese.

STEP FOUR: If using leftover roast beef, it’s a nice idea to go through and ‘re-shred’ the beef pieces in case there are any large chunks still holding together. It’s nice if the pieces are bite-size. Place them on top of the cheese slices.

STEP SIX: Sprinkle the shredded cheese on top of the shredded roast beef and cover with the top portion of the buns forming the sliders.

STEP SEVEN: Melt the remaining butter, add in the parsley and garlic, and liberally brush the tops of the buns.

STEP EIGHT: Into the oven, they go! While they are baking, reheat the au jus dipping sauce (or make the packets up) and pour it into as many small ramekins as you are serving people. When they are done baking, remove them from the oven and let them rest a few minutes.

What Other Fillings Can I Use For The Sliders?

Well, I’ve made this same slider recipe but I used my leftover Easy Instant Pot Pulled Pork and made them into Pulled Pork Dips!

If chicken is your thing, you could turn these sliders into Chicken and Cheese Sliders using this 3 Packet Chicken recipe for the Instant Pot that I made!

Switching up the Condiments

My favorite condiment to serve with roast beef is horseradish, mustard, or mayonnaise, depending on what you’re making. So spreading on some old fashion dijon mustard on the buns would be super tasty, like I did in my Easy Italian Sliders recipe.

If you want to go an even more spicy route, try adding some spicy banana pepper relish!

Cheese and Bun Options:

I encourage you to use any cheese you find delicious. Of all the cheeses you could choose from, just try to keep in mind the melting ability. The easier the cheese melts, the more ideal it is for this recipe.

Not into using tray buns or don’t want to use Hawaiian buns? You could make your very own buns using my No-Knead Crusty Country Bread recipe and instead of making a loaf, just form them into buns!

Common Questions

Dealing with Leftovers

In all honesty, there have never been any leftovers when I’ve made this recipe. I’ll say though that I have had friends take some home on the day I served them and they’ve eaten them later that evening and they still really enjoyed them.

I wouldn’t recommend freezing them because I think the texture upon thawing would be really unpleasant.

If you want to make them ahead of time, assemble the sliders the morning of when you want to serve them. Then, just before they go into the oven, brush the melted butter over the top and bake.

Have you made this recipe for beef sliders? Leave a comment and a star rating (in the recipe card) below letting me know what kind of cheeses you used! Thanks so much for stopping by The Salty Pot today and have a wonderful day!

~Joanne