Here is something that doesn't need half a day to prepare (like this or this), yet everybody always loves it.
It is not necessary a diet food, but it is ideal for people with egg allergy.....something to think about when you bake for a crowd.
Heat oven to 400F
Mix the following ingredients together:
1 lb. (450 g) farmers cheese
1 lb. butter (I told you it wasn't no diet food)
1 lb. flour
1 tsp. salt
Roll it out 1/2 inch thick on a floured board . At this time you can make a simple design on top by making lots and lots of overlapping circles with the round cookie cutter (be careful NOT to cut through the dough at this time!) .When you are happy with the design cut out circles , place them on a baking sheet and bake for 20-25 minutes.