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.
Yields 12 Servings Servings Quarter (3 Servings) Half (6 Servings) Default (12 Servings) Double (24 Servings) Triple (36 Servings) Prep Time 15 minsCook Time 20 minsTotal Time 35 mins12 sliders
12 slider buns or Hawaiian rolls
1 lb pastrami slices
6 slices Swiss cheese, cut in half
12 dill pickle slices (rounds or spears, depending on preference)
3 tbsp Dijon mustard
2 tbsp mayonnaise (optional, for creaminess)
3 tbsp unsalted butter, melted
1 tsp onion powder
1 tsp garlic powder
1 tsp poppy seeds (optional, for topping)
Salt & black pepper, to taste
Prepare the Sliders
1
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.
Layer the Filling
2
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.
Make the Mustard-Butter Glaze
3
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.
Bake the Sliders
4
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.
Serve
5
Let cool for 2–3 minutes.
Slice along bun lines into individual sliders.
Serve warm with extra pickles and mustard on the side.
Tips & Variations
6
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!
Suggested Pairings
7
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.
Ingredients 12 sliders
12 slider buns or Hawaiian rolls
1 lb pastrami slices
6 slices Swiss cheese, cut in half
12 dill pickle slices (rounds or spears, depending on preference)
3 tbsp Dijon mustard
2 tbsp mayonnaise (optional, for creaminess)
3 tbsp unsalted butter, melted
1 tsp onion powder
1 tsp garlic powder
1 tsp poppy seeds (optional, for topping)
Salt & black pepper, to taste
Directions Prepare the Sliders
1
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.
Layer the Filling
2
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.
Make the Mustard-Butter Glaze
3
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.
Bake the Sliders
4
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.
Serve
5
Let cool for 2–3 minutes.
Slice along bun lines into individual sliders.
Serve warm with extra pickles and mustard on the side.
Tips & Variations
6
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!
Suggested Pairings
7
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.
Pastrami Sliders with Pickles
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