Step 1
Heat oven to 350 degrees
Step 2
Spread mustard evenly on the bottom of the slider buns
Step 3
Keeping them together, place slider buns in a 9 x 13 baking dish. Distribute pastrami evenly over bottom half of slider buns followed by pickles and cheese. Place top of slider buns onto bottom half.
Step 4
Keeping them together, place slider buns in a 9 x 13 baking dish. Distribute pastrami evenly over bottom half of slider buns followed by pickles and cheese. Place top of slider buns onto bottom half.
Step 5
Cover with foil and bake for 15 minutes
Step 6
Remove foil and continue to bake for 5 minutes longer until tops are golden brown.
Step 7
Let cool for 5 minutes. Separate sliders and serve.