Grate the cheese on a coarse grater, mix with the cheese curds and feta cheese.
Melt the lump of butter in the oven dish in which you're going to be baking, pour in the mixture, smooth it out and bake 30-40 min. in a preheated 356°F (180 °C) oven with the fan on.
Unbelievably tasty and the fragrance wafting from it is unique too!
It's suitable both as an appetizer and light dinner.