Cook in the microwave on high for 5 minutes, then carefully uncover. Stir well, then tip in the squash and spinach and stir again. Add the rest of the stock and mix together, then cover with cling ...
You can microwave a butternut squash, but it's not our recommended ... remember to use a paring knife to cut slits into the vegetable to allow steam to escape. Otherwise you'll have a real mess ...