In fact, this question gets asked ALL THE TIME in our 21 Day Fix Facebook Community. Guys, I get this question all the time, so if you ever wondered h ow to calculate containers for a recipe, especially when cooking a soup, casserole, or a chili where different food groups are mixed together, you are not alone! How do I figure out 21 Day Fix containers for a non-Fixed recipe? Want to learn how to calculate containers for the 21 Day Fix for your favorite recipes? Follow these easy steps and I’ll show you how easy it really is!