Place the Brussels sprouts in slightly boiling salted water and cook over a low heat for 15-20 minutes
Dice the bacon. In a pan without fat crisply leave out. Remove bacon
Cut onion into rings. Add the sausages to the frying fat and fry on a medium heat for 5-7 minutes
Place 8 tablespoons of water, milk and 1 pinch of salt in a pot and bring to the boil. Remove the pot from the heat and stir in the puree powder with a whisk. Season to taste with nutmeg
Drain the Brussels sprouts well and mix with the bacon. Arrange sausages, mashed potatoes and Brussels sprouts on a plate. Sprinkle with onion and serve