Cut the ends of the bread stick and then carve the crumb with a long knife.
Mix butter with grated horseradish and mustard, add salt and chopped garlic.
Dice sausage, hard cheese, hard-boiled eggs and sweet pepper, stir them up with the butter mix.
Stuff the bread stick with the filling and place it into a refrigerator for 40 minutes.
Cut 100-150 g slices for a serving; decorate with parsley greens.