Cut the sausages into slices. Wash and clean the cucumbers, quarter them lengthwise and cut them into pieces. Heat oil in a pan and fry the sausage in it. Add cucumbers, braise briefly, deglaze with stock and bring to the boil.
Add mustard seeds and cook covered for 5 minutes. Pour on cream, bring to the boil and add the sauce thickener while stirring, bring to the boil again. Drain corn and silver onions on a sieve. Collect the liquid.
Drain the corn as well. Add the corn and silver onions to the pan and heat up briefly. Wash the dill, dab dry well and cut finely, except for a little garnish. Stir the dill into the sauce, except for a teaspoon.
Season sausage goulash with salt, pepper, mustard and 2-3 tablespoons of silver onion stock. Arrange in a bowl, sprinkle with remaining dill and garnish with a sprig of dill. Serve with mashed potatoes or rice.