I used to do that with apples.
When I eat now, I eat all of the same food items before moving onto another bit on my plate - think eating all the carrots on a Sunday dinner, then all the meat, then all the potatoes, etc. they can touch and stuff but I just like to eat all of one thing before I start on another
Obviously in a meal like lasagne or cottage pie, I’ll eat that together but still eat any accompaniments separately. It makes my husband (DH) roll his eyes. We’re on an all inclusive at the min (already got my excuses ready for the coroner - excessive carbs and too much gin) and husband keeps laughing at me because he’s like “this food goes really well with this food” and I won’t mix them