Lay out one or two ham slices in a configuration that will allow them to be wrapped around the cheese/chicken. Break a piece of cheese in half and put halves on either side of a chicken tenderloin. Lay cheese/chicken in middle of the ham slice and wrap.
Put flour in one dish and season with salt and pepper. Place eggs in another dish and beat with a splash of water. Melt butter in a third dish and mix well with breadcrumbs and Parmesan.
Dredge each ham/cheese/chicken packet first in flour, then in egg, then in breadcrumb mix, pressing to coat well. Place on parchment-lined baking sheet. Bake in oven preheated to 375 for 25-30 minutes, or until bread crumbs are golden brown and chicken is done.
Mix yogurt and Dijon mustard for a dipping sauce, and serve.