Boil lentils in stock until just cooked,
about 15 mins. Drain, then tip into a large
bowl. Bring a saucepan of salted water to
the boil, throw in the broccoli for 1 min,
add the beans and peas for 1 min more.
Drain, then cool under cold water. Pat dry,
then add to the bowl with the lentils.
Mix together the dressing ingredients
with some seasoning. Pour over the
lentils and veg, then mix in well with the
chopped chilli. Pile onto a serving platter
or divide between 4 plates and serve.