Directions:

Step 1: Heat oven to 350 degrees F

Step 2: Slice rolls in half horizontally. Spread mustard evenly on the bottom of the rolls. Layer on the cheese and pastrami and then place the roll tops on.

Step 3: Place rolls in a 9 x 9 dish.

Step 4: In a small microwave safe bowl, heat butter and onion for 1 minute in microwave. Stir in garlic powder. Brush garlic butter mixture all over tops of rolls and on the sides until completely covered.

Step 5: Cover with foil and bake for 20 minutes.

Step 6: Remove foil and continue to bake for 6-8 minutes longer until tops are golden brown.

Step 7: Let cool for 5 minutes, carefully place pickles under top bun, separate sliders and serve.