How to improve parent's life?

My parents live in my hometown [ which is a metro city ] and I am staying in a different city for work. What are some of the things I can do to improve my parent's quality of life?

Since the area doesn't have good cooks, so there's no cook at home, my mother does all the cooking. This is something I am not sure how to improve.

Cab services are there, so transport isn't an issue.

Please suggest ways by which I can improve their quality of life especially around health.