Make these Roast Beef Sliders with toasted buns, thinly sliced homemade tender roast beef, melty pepper jack cheese, pickled red onion, and garlic aioli for an easy and super delicious game day or party meal. They will be a hit!
8brioche slidersor you may replace them with oat rolls, dinner rolls, or Hawaiian sweet rolls. For making this recipe gluten-free or low-carb, use gluten-free or low-carb bread.
4slicespepper Jack cheeseeach slice of cheese cut into 4 squares to fit the sliders (If you are not a fan of spicy foods, use provolone, Havarti, smoked gouda, cheddar, or Swiss cheese)
Pickled red onionsor store-bought pickled onions, or if you prefer, pepperoncini peppers or caramelized onions although they don't taste like the pickled onions
⅓cupAioliMake your own: In a small bowl, whisk together ⅓ cup mayonnaise, 1 clove of garlic (grated, ½ tablespoon lemon juice, salt, and ground black pepper to taste. Then, stir in about ¼ teaspoon fresh thyme leaves) OR you can buy it ready!
Toast the bread: Heat a griddle or a large cast iron pan over medium heat until very hot. Spread unsalted butter on the inside of the buns and place them onto the griddle or skillet. Let the bread toast for 1-2 minutes or until crispy and golden brown. Reserve!
Heat the meat and cheese: Place the slices of roast beef leftovers on the hot griddle and then fold about 1 slice of the roast beef onto the bottom bun of each slider. Overlap 2 squares of cheese on top of the hot roast beef and then 1 slice of roast beef on top of the cheese (so the cheese melts). Top with a mound (several slices) of pickled red onions and gently press bun tops onto each slider.
Serve: Insert a bamboo knot party pick on each slider and serve immediately. Serve them with a small bowl of aioli on the side arranged in a tray so the aioli can be spooned on top of the pickled red onions.
TIP: If you prefer to serve them already topped with the aioli, make sure the sliders don't sit for a long time; otherwise, the aioli can make the buns soggy. In addition, if you prefer you can assemble the sliders with the meat and cheese and then heat them in the air fryer or in the oven (just until hot) and add the pickles and aioli right before serving.
Recipe Video
Recipe Notes
How to Store Store the ingredients for your roast beef sliders as follows:
FRIDGE: Once you prepare your roast beef and fixings (pickled onions and aioli) and let them cool, store them in separate airtight containers in the fridge for up to 3-4 days. Of course, the cheese must be refrigerated according to the instructions in the package.
ROOM TEMPERATURE: Store your bread at room temperature in the bag you bought it in a cool, dry place.
REHEATING: Warm leftover roast beef slices in the oven at a low temperature or microwave until warmed throughout, or you can reheat them on a lightly greased griddle over medium heat just until hot, topped with a slice of the cheese so it can melt easily. Meanwhile, you can toast your buns!
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