I honestly think that Food Prep is one of the main reasons why we've have been able to maintain this lifestyle for over four years. No matter how busy we are we always make time for food prep, even if it's just throwing some chicken and salsa in the crock pot to make "Salsa Chicken". This small step at the beginning of the week sets us up to have a successful week. Not only is it awesome to have most of our food ready, which means not having to cook every single night, it also gives us a sense of accomplishment before the week even truly begins!
Food Prep isn't for everyone though. If you prefer (or have to) cook every night, just prepare a little extra so you have some for lunch the next day! Either way, having your food ready to go will help you reach your goals.