But I just found the trick to make it! Without egges. And it is even more tasty then I remembered the egg version! (I guess I should have taken a photo... next time).
Anyway, this is how you make it (big serving for one):
1/3 cup chick-peas flour
1 tbs nutritional yeast (powder)
1/3 cup water
some vegan cooking cream (I used 5% Alpro, the only one to find in Israel). That might work with soy milk as well, but I haven't tried that yet.
1 slice of bread (make it wholewheet)
optional extras: chopped green olives, chopped mushrooms, whatever you like)
Mix everything in a bowl. Make sure there are no lumps (is this the word?) of chick-peas powder.
In the meantime fry a slice of bread on a non-sticky pan with some oil. When it is a little brown flip it to the other side, and pour the chick-peas mix over it and around. Fry well. When it looks good, flip everything to the other side and fry some more.
update: fixed typo