As stated above. I can go months without eating an egg, for example, and suddenly crave eggs benedict for breakfast everyday.
Good thing is my dietitian is aware of this executive dysfunction/quirk/habit and works closely with me to help me out planning meals in a way that works me.
Right now I am on a soup kick: Soup, soup, soup everyday, all day.
ETA A word
I can totally relate to just eating ingredients. I was just talking with coworkers about eating deconstructed sandwiches, so basically just slices of deli meat, cheese and some toast. You might want to look into getting some unflavored/unsweetened Huel? I get a bag every few months and when I feel like I’ve slacked on nutrition I’ll make a shake of it since its got all the micronutrients I’m probably missing. Always makes me feel better. Best of luck!