Bag up smoothie ingredients and throw them into the freezer.
Meal prepping can save you time and money during the week ahead, but it often requires a lot of work on Sunday. If you've ever attempted it before, you know that it can take hours of effort — and who's got time for that? To keep you from sacrificing your precious weekend time, we've scoured Instagram for the best meal-prep tips and tricks. Try these 18 hacks ahead to make the process way more efficient.