Indian supermarket - what to get?

I've just moved a short walk from an Indian food supermarket. This is a treat because where I live, speciality ingredients/world food stores are rare and some ingredients for certain cuisines are just not possible to find. For example, I love Yotam's stuff and have his vegetarian cookbooks, but some of the recipes have ingredients it's just not possible to get here.

So I'm super excited about having Indian ingredients nearby that I haven't previously had access to. The only problem is that I'm now overwhelmed by the choices and have no idea what anything is, so I don't know where to start!

I went in there yesterday to get spices to make berbere mix, and there were spices, chutneys, flours, frozen veg, curry pastes, sauces, etc, all in varieties or flavours I'd never heard of. And I don't want to just randomly buy stuff when I don't know what I'm doing.

So: what vegetarian Indian recipes do you recommend for someone who has access to an Indian food store, i.e. a wider range of ingredients than the standard Western ones? Only thing: they don't have fresh veg, but do have quite a bit of speciality frozen veg.

Thank you!