I disagree that it's the solution, unless you can find a few meals that all require the same ingredients but are cooked differently. Otherwise you end up eating the same thing multiple times a week... Which just gets old. I'm fine eating dinner one night and leftovers for a day or two, but I don't wanna do it all week, even if you slightly change it up (mix grilled chicken in a salad, then a burrito, soup, etc)
Batch cooking is the solution to that, see: https://www.reddit.com/r/MealPrepSunday/