Cube the bacon and slightly fry in pan. Do not brown. Drain the pieces of the fat. Mix half of the bacon with the Quark and season with salt and ground caraway. Slice the potatoes and layer in greased oven proof dish with the Quark mixture. Mix the bread crumbs with the grated cheese and sprinkle on top. Add butter flakes and bake at 350F for 35 minutes. Garnish with the remaining bacon bits and serve with green salad.