Heat oven to 200C/180C fan/gas 6.
Toss the sausages and potatoes in a
roasting tin with the oil. Roast for 30
mins, then mix the mustard and honey
together and stir into the tin. Roast for
10 mins more until sticky and cooked.
Meanwhile, mix together the dressing
ingredients with some seasoning – the
onion will soften slightly in the vinegar.
When the sausages are ready, thickly
slice them, then mix back in with the
potatoes. Tip the spinach onto plates, pile
the sticky sausage slices and potatoes on
top, then spoon over the dressing.