Here's an example; customize to suit. Also give yourself a few months to straighten out the kinks - just like a budget, it will NOT work in the beginning, so be gentle with yourself & flexible.
SUN - wkly planning, & wkly menu planning, surf the groc ads online Sun/Mon which saves gas & time
MON - clean out the fridge night, & Mon's dinner is Leftover Buffet. I also use fridge cleanout night to make a crockpot soup or stew or stir fry (or other dinner) for the following night.
TUE - is Grocery night so I need to clean out the fridge the previous day
WED - Produce Prep Night, washing & cutting up the whole stalk of celery into sticks, the whole head of caulif into florets, making a green salad, etc.
THU - Batch Cooking night
Fri night to Sat night - rest & renewal