Put the cauliflower into a blender and mix with the eggs, grated parmesam, chives, paprika, salt and pepper.
Spread this mixture in a pan with a drizzle of olive oil, forming 4 squares with the spatula. Cook slowly over a very low heat for at least 5 minutes on each side, flipping them very carefully.
Add the ham and the grated cheese onto one slice, then close the toastie by putting one cauliflower slice on top of the cheese and ham on the other. Allow them to cook for a few minutes till the cheese is melted. Enjoy hot as a big toastie, or cut into triangles.