How to navigate treatment with little to no symptoms?

I have had incidents of food/pills getting lodged in my throat since I was 16 (33 now). It only happened maybe once or twice a year so I mostly ignored it but I finally got a scope done and they found a 6mm stricture in my upper esophagus. Started dilation sessions and biopsies from the initial and follow up sessions showed no evidence of EOE but the latest one showed 40 cells/hpf in my proximal esophagus indicating I have this condition.

My question is, now that my throat is dilated to 15mm, I’ve had no food impaction events or other symptoms. How am I supposed to go through the 6fed diet and figure out which ingredient is causing my inflammation? I cannot afford the out of pocket expenses ($700 dollars a pop) to get scopes/biopsies every 10 weeks while I eliminate things like I’m reading. Is there another way to figure this out??