These sliders bring all the deli vibes in a mini size! Soft slider buns layered with juicy pastrami, melty Swiss cheese, tangy pickles, and a mustard-butter glaze. Baked until golden, gooey, and irresistible, they’re perfect for game-day snacks, party platters, or an elevated take on classic comfort food.
Preheat oven to 350°F (175°C).
Without separating the buns, slice the slider rolls horizontally in half (like one big sandwich).
Place the bottom half in the baking dish.
Spread Dijon mustard (and mayo if using) over the bottom half.
Layer pastrami slices evenly across.
Top with Swiss cheese slices.
Add one pickle slice per bun.
Place the top half of the buns over the filling.
In a small bowl, mix melted butter, onion powder, garlic powder, and a pinch of salt and pepper.
Brush generously over the tops of the buns.
Sprinkle with poppy seeds if desired.
Cover baking dish loosely with foil and bake for 15 minutes until the cheese is melty.
Remove foil and bake an additional 5 minutes until tops are golden brown.
Let cool for 2–3 minutes.
Slice along bun lines into individual sliders.
Serve warm with extra pickles and mustard on the side.
Spicy kick: Add pickled jalapeños or a smear of spicy brown mustard.
Sweet-savory version: Use Hawaiian rolls and swap Dijon for honey mustard.
Make-ahead: Assemble up to 1 day in advance, cover tightly with foil, and bake just before serving.
Meat swap: Works beautifully with corned beef or smoked turkey too!
Drink: A crisp lager, dry Riesling, or cold iced tea.
Side: Pair with coleslaw, potato chips, or roasted potato wedges.
Occasion: Perfect for game-day spreads, casual dinners, or cocktail party buffets.
12 servings