In the end I made some patties with the meat, threw in some spices & herbs (pepper, chili, oregano, garlic) and chopped onions. They were quite delicious!
As an aside, years ago, in the land of good bier and adult movies, while taking the weekend off from repelling the Soviet hordes, I bought a vegetable chopping whatsit. Made by Börner, it works very well, and makes the task of slicing or dicing veg child's play.