Chop the pretzel sticks until they are very small. Chop the onions and garlic. Season the mince. Mix the pretzel sticks, onions, garlic and eggs with mince.
Shape the Hackberg into a hedgehog and place in a greased oven dish. Leave space for the walls of the mold.
Place coarsely chopped mushrooms and tomatoes on the edge. Arrange the pineapple slices on the hedgehog. Cover the mold with aluminum foil and place in the oven at 180 ° C for about 45 minutes.
Rasp cheese. Remove the foil and spread the cheese generously on the hedgehog. Leave in the oven at 160 ° C for a further 45 minutes.
After cooling off briefly, put the pretzel sticks in the meat mountain - the hedgehog is ready.