There is no minimum amount. I have gone to Johnny Rockett on many occations and got a milk shake (to go) only... The trouble that I have with IDine is there are not many restaurants in my area, and the ones in the list are a poor selection. The program goes back and forth between worth it and not worth it. Many restaurants join the program to get customers and drop it when they see how much they get to pay for the people that use it. I have seen restaurants join one month and drop out two months later.