- Slice entire pack of rolls in half.  Set top slab aside.  Place bottom half in a greased casserole dish. 
- Layer four slices of ham on top of the bottom slab. Then, top with cheese and the remaining ham slices. 
- In small bowl, combine mustard, mayonnaise, roasted garlic, coriander, paprika, pepper, salt, and lemon juice.  Spread mustard mixture on remaining half of rolls and place on top of the ham layer. 
- Pour melted butter on top and sprinkle with poppy seeds. 
- Cover with aluminum foil and bake for 20 minutes, then uncovered 3-5 minutes.