Preheat Oven/Toaster Oven to 350° F
Slice all croissants in half lengthwise.
Place mayo and mustard on each slice top and bottom.
Layer on 2-3 slices of each ham and then cheese on each of bottom croissants.
Wrap in foil and place in preheated oven/toaster oven for 12-15 minutes.
Once done, take out of the oven and allow to cool on wire rack for a few minutes until you can carefully take off the foil.
Serve with pickle slice and chips and enjoy!