Preheat and Prepare: Preheat the oven to 400 degrees. This high temperature will ensure your rolls get a nice golden crust while allowing the cheese to melt perfectly.
Toast Bottom Buns: Cut the rolls in half, and set the top buns aside. Spread a few tablespoons of mayonnaise on the bottom buns. Place in an oven-safe tray or a 9×13 baking dish and bake for 7-10 minutes or until they are golden brown. Toasting the bottom buns with mayonnaise creates a moisture barrier that prevents the bread from becoming soggy from the meats.
Prepare Meats: While the rolls are in the oven, chop up the deli meats and heat thoroughly in a skillet over medium heat. Heating the meats enhances their flavors and ensures your sliders will be served warm throughout.
Mix Salad Topping: Mix together all of the ingredients for the salad topping. The combination of crisp lettuce, tangy pickles, and zesty banana peppers creates a fresh contrast to the warm, savory meats.
Assemble and Bake: When the bottom rolls are toasted, place a layer of provolone on top, followed by the heated meats. Cover with the top buns. Mix the melted butter and Italian seasoning together and brush on top of the buns. Bake for another 5-7 minutes until the cheese is melted and tops are golden.
Finish and Serve: Carefully remove the top buns and cover the meat with the salad mixture. Place the top buns back on and slice them up carefully. Serve immediately while warm and enjoy!