And I would just like to add everyone's body is a little different. People may have different level / type of deficiencies, and for me that is Vitamin B. So I guess you cant really have meal that works for you and works for everyone else. It is important for everyone trying this to do it themselves and test it out with your body. Not to mention you get to think about how to cook your favourite food.
I personally did something similar for 6 months, but due to different circumstances I can no longer do meal prep. During that time I had an idea about making a web app that help you select your meal prep. You input foods that you like and loath, input regional location so that we know what you can get and and not, and price range, how much it would cost per meal ( Not everyone is rich and well off ) It will hopefully have a List of Meal prep that you may like, along with instructions and where to buy those ingredients.