Healthy meals/snacks for someone with ADHD?

A couple months ago I decided I want to learn to eat healthier and also lose some weight. What are some good snack and meal ideas for someone with ADHD?

Here's what I'm looking for: •High protein/generally healthy snacks that are easy to make or even better if it's something I can just buy with minimal prep •Healthy Breakfasts I can have prepared ahead of time to quickly eat before or on my way to work (I'm the chronically late type of ADHD, I never have even 5 minutes to spare in the morning 💀) •Healthy meals I can make ahead and easily pack to bring to work •Anything healthy but not super expensive that I can just buy to eat (Meals or snacks) when I don't have time/energy to cook something