Terry Matlen talks about this struggle in her book, Queen of Distraction — and offers many tips and solutions. She talks about making up some dinner cards and carrying them with her at all times so she could run in the store, choose a dinner card, and then pick up everything on it.
Here are some more good tips:
There are apps that help with meal planning — you choose the menu for the week and it makes a grocery list for you. Of course, there are the boxed meal kits now too, like Blue Apron. You choose the meals you want each week and they send a box with all the ingredients and all the recipes right to your door.
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism