If you are just going to a dinner and don’t want anything very fancy, then maybe just go to a fast food, its not very healthy but its okay if you do it once. If you were going out on a date then maybe you want to go somewhere fancy for one night, I know it might cost a lot but it is fine, just don’t look down at your wallet and crying. Next if you are alone then just go a normal restaurant and order like a salad, or some on-tray.