Best Non Fancy Restaurants and Cafes in Mumbai.

Hey Mumbaikars, as the title mentions, I wanted your best Non Fancy Restaurants and cafes in the city. I have planned Bastian and Izumi among few of the fancy places but am yet to decide upon good budget friendly places which I can go and enjoy a bite. The main cusuines I'd love to try would be Japanese, Mexican, Lebanese and Burgers. Thanks for your inputs and hope to see Mumbai in its full flair!!!