I adapted a recipe on manjulaskitchen.com for 'Spicy Squash', which although very good, wasn't quite to my tastes. This is a less sweet version, using a mix of veg and some greens, instead of just squash. It also has a creamy style gravy with the help of some cashew nuts which makes it more filling as a veg*n main. This calls for amchoor powder/amchur, which if new to you, is just a powder made from green (unripe) mangoes. It gives a distinct 'tang'. Most Indian groceries carry it, here in Canada I know Superstore even has it...but probably not worth buying just for this - I think some lime juice would be a pretty good substitute. This makes enough for two if you're serving alongside something else...a good idea as it is pretty rich.