Peel the cucumber and remove the core. Dice small with the onion.
Sear the onion and ham lightly, remove from the fire, then add the cucumber, egg and the other ingredients, except for the tomato and cheese, and mix together. Seasoning and seasoning.
Pour into greased and lightly crumbled tins, place 1 - 2 thin slices of tomatoes on top and finally 1 teaspoon of grated cheese on top.
Bake in the oven at 180 - 200 ° for approx. 15 minutes.