Stew with string beans and smoked sausage

Halve the potatoes, put them in plenty of water with salt and cook until about 20 minutes until done. Put the string beans on with a bottom of boiling water and let them thaw while stirring. Add the white beans with liquid, bring to the boil and boil for another 5 minutes.Heat the smoked sausage according to the instructions on the package.

Bake the bacon strips in a frying pan without oil or butter in about 10 minutes. Add the mustard and continue to warm.

Drain the potatoes and stamp them with the puree pestle into a coarse puree. Drain the beans and collect the cooking liquid. Spoon the beans and the bacon through the mash, add some cooking water to make the whole thing a bit smoother. Season with pepper and serve with the smoked sausage.