I'm going to be know as the bean lady but they're what got me through Phase 1. You can have 2 cups of brown rice a day so don't forget about white, red, or black beans and rice. Some people have suggested eating black beans with salsa on it. Also, there's a taco soup recipe that consists of mostly beans that's actually quite good.
The motivation to me was after going through detox for 1 or 2 days I wanted to finish strong so I knew I stuck to it AND would hopefully not need to go through it again - I'm not denying that's it hard.
Last, detox really gets rid of a lot of cravings - sugar, starches, etc. It really is worth it.