Preheat oven to 350° F (175° C) and spray 9x13" pan with non-stick spray. Using a serrated knife cut the rolls in half, keeping them in their "slab" form. Remove the "tops" of the rolls and set aside.
Place the ham slices evenly over the bottom of the rolls, then repeat with the cheese. Replace the tops on the rolls, set aside to make the sauce.
Melt the butter in a saucepan. Once melted, add Worcestershire sauce, mustard and brown sugar. Whisk well, bringing to a simmer for 30-60 seconds until thickens slightly and is bubbly. If adding, stir in poppy seeds or sprinkle on top of buttery buns.
Pour sauce evenly over the rolls, using a pastry brush to brush the sides and cracks with the buttery sauce. Spray a piece of foil with non-stick spray and seal rolls tightly.
Bake immediately or refrigerate for 4 - 24 hours.
Bake with foil on for 6 minutes, then remove foil and bake for an additional 9-12 minutes until cheese is melted and rolls are slightly crusty on top. Serve warm or at room temperature.
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Notes
Storage TipsStore leftover funeral sandwiches in the fridge, covered with plastic wrap or in an airtight container for up to three days. Freeze completely cooled funeral sliders by wrapping well in an airtight container freeze up to 3 months. Can I freeze Hammy Sammies? Yes, if already baked, allow to cool, then wrap tightly and freeze up to 3 months. Before baking, wrap them tightly in plastic wrap and foil, then store in the freezer. When ready to enjoy, bake from frozen, adding a few extra minutes to the cooking time or thaw in fridge overnight. You may add the sauce before freezing or when baking. Reheat Funeral Sandwiches | To reheat leftover sliders, preheat the oven to 350° F (175° C) and place leftover sliders in a baking dish covered with foil and bake for 5-10 minutes until they are warmed through, removing the foil for the last 3-5 minutes. Keep Sliders warm in crockpot | Allow the sliders to cool for about 10 minutes, then wrap each slider individually in aluminum foil, place in a crockpot, lay some paper towels or a clean tea towel between the lid and the crock and place the lid on, turn the slow cooker on warm. Keto (Low-Carb) Ham and Cheese Sliders | I am told that Aldi's carries great Keto slider buns; replace the Hawaiian Sweet rolls with those or your favorite brand. Load up the ham and cheese, melt butter for the sauce, and swap the brown sugar for a brown sugar replacement (I like this one). Gluten-Free Ham and Cheese Slider Recipe | Replace the sweet rolls with your favorite gluten-free slider bun, double-check your mustard and Worcestershire sauce to make sure they are gluten-free (Lee & Perrins is GF), and bake away.