Put it into a garlicky lentil soup flavoured with cumin and lemon (sorry, I sound like Nigella, don't I - this is a variant on the Basic Thing I have cooked since a wholefoody student).
Have a cheese sauce - I'd say blue cheese sauce but you can't have it - with the spinach and pasta.
Put it into a chickpea curry (add potatoes to the curry if feeling in need of aloo).
I LOVE spinach.