Try wholegrain mustard instead of horseradish if you like.
Heat the oil in a
large heavy-based frying pan. Add the
sausages and fry for 8-10 minutes until
well browned. Remove the sausages,
then slice them on the diagonal and
Turn the heat to
high, then add the potatoes and leeks
and give them a good stir. Continue to
cook on a fairly high heat until the
potatoes begin to brown and turn crisp.
Toss the sausage slices back in along
with the creamed horseradish and heat
for a further 2-3 minutes. Take the pan
off the heat, sprinkle in the cheese,
season well and gently stir to combine.