Turn the slices of Jagdwurst sausage all around first in flour, then in egg, then in breadcrumbs. Heat the oil in a pan and fry until golden.
For the sauce, melt the butter and stir in the tomato paste evenly, then add the flour while stirring. This is followed - also with stirring - water, then ketchup. Now the sauce is seasoned with sugar, salt and pepper.
In the meantime, cook the pasta according to the instructions on the packet and arrange everything together.