The main thing that I try hard to do is not to plan on an OMAD day, and then binge eat. If there is a special day coming up, where I know we are having a special meal, or reason that we will be eating more than one meal for some reason, then that is part of my eating program.
I think that having a day when you eat differently is okay, as long as it is planned for and part of your schedule.
I try to make sure that I have foods that will keep me satisfied longer , and I eat between 11-4 (not all that time, but a meal somewhere between those 2 times), and this way, I am not hungry when I go to bed, but my food has a good start on being digested, so I can have a good fasting period.
I don’t expect myself to be perfect, but if I follow OMAD around 90% of the time, then I am okay with that. It is a life change, and not a temporary way of eating, so there will be days when I follow perfectly, and days when I don’t, but all part of the long journey.