Here’s a fun and delicious way to repurpose your leftover Christmas ham—Hot Ham and Cheese Sliders! These aren’t your average ham sandwiches. Imagine ooey-gooey cheese, savory seasoned onion butter, and crusty, buttery bread that’s soaked up all the flavors. It’s a perfect crowd-pleasing, easy-to-make treat for ringing in the new year!

The basics of the recipe are simple: ham, cheese, buns, and a butter sauce made with garlic, Worcestershire sauce, mustard, and onion (fresh or dehydrated). But the secret to making these sliders next-level lies in a few extra steps to ensure the cheese melts perfectly and the bread soaks up all the butter sauce.
Ingredients:
- Filling: Leftover Christmas Ham (or deli ham), Swiss cheese (or your preferred melting cheese), and American mustard for spreading.
- Onion Poppyseed Sauce: Unsalted butter, poppyseeds (optional), finely chopped onion, salt, pepper, garlic powder, and a bit more mustard.
- Bread: Soft white rolls (like Hawaiian rolls) work best since they absorb the sauce perfectly.
Instructions:
- Split the rolls in half (keeping them in one piece) and spread mustard on both halves.
- Layer on the ham and cheese, then bake for about 10 minutes to melt the cheese.
- While that’s happening, prepare the onion poppyseed butter sauce.
- Once the cheese is melted, top the sliders with the mustard-smeared top half and pour on the butter sauce.
- Cover and bake for 20 minutes, then uncover and bake for another 10 minutes to get that crispy, golden top.

The result is a savory, cheesy, buttery, melty sandwich that’s perfect for a crowd or for a cozy night in with a good movie. The key to success? Don’t skip the step of pre-melting the cheese before adding the top—it guarantees a perfectly gooey result! Enjoy!