This is what I had the other night and what I was going to recommend. (for my something “ham-like” I use speck (bacon)).
Quiche with leeks: make quiche dough, roll out, put in pie tin and pre-bake it if necessary. Cut and sweat some leeks and onion on medium/low heat until edible. Mix quark, 1 - 2 eggs, some grated cheese or crumbled blue cheese, salt, pepper, a little honey or raisins. Add leeks to the quark mixture, put mixture in pie. Bake.