When you want to talk clean food, the following recipe is going to fill the bill very nicely. It's chock-full of vegetables, has a mild spice from the curry to keep things interesting, and includes coconut milk which calms the heat down. Typically fish sauce is used to provide the umami flavor that runs throughout any curry, but to keep it completely vegetarian, soy sauce can be used instead.
Curries often also have some type of protein involved, whether it's shrimp or chicken. Again, this is a vegetarian dish, so tofu is used instead. If you're not a fan, leave it out entirely, it won't suffer for it. It will also save you in planning time, as the tofu will be more flavorful if it's marinated beforehand. Either way you choose to enjoy this curry, you'll be thankful you did.