Every year we do a potluck at the school I work at. I try to do things that are filling but tasty. I found this recipe on Pinterest, but adapted it. Some people are weird about onions, so I excluded those but you can add those if you like (the original recipe had them minced and put in the dijon mixture). These are the perfect size to nosh on while visiting (great party or buffet food). I may try them with jalapeno jelly to add a little spice.
Preheat oven to 350. Grease an 11x15x2 inch sheet cake pan.
Cut the Hawaiian rolls in half. Place the bottom of the rolls in the baking pan.
Layer ham (until well covered), cheese (you may want more if you want it really cheesy), and pickles. Place the tops of the rolls back on (try to line them up with the rolls underneath).
Dijon Spread: Melt butter in a glass measuring cup. Whisk together butter and dijon mustard. Let cool slightly and stir again (this will separate and then combine again as it cools). Spread over the tops of rolls (this makes the rolls look odd, but it tastes amazing.... if you want a cleaner look, spread it on the bottom side of the roll tops).
Cover the sliders with foil and bake for 20 minutes. Remove the foil and bake for another 15 minutes or until rolls are a toasted brown. Cut sliders and enjoy!