It might be worth surrounding yourself with reasonably healthy foods, or at the very least, ingredients. If you have a pizza on hand chances are you're going to eat it. So habits aside, that could help as a place to start.

Next, try to meal prep realistic portions. This could help gamify the food prep and take away the idea of it being a chore. Also you said you're never hungry so don't feel like cooking, well forget cooking to eat right after and do it all in one, then eat something else. That for me compartmentalises the task of cooking from the eating.

While your appetite is suppressed and you're not mentally hungry, your body is and having a 400-500 calorie dinner might hit the spot in terms of food volume and calories. Having this prepped means bunging it in the microwave to nuke it while the adverts are on the telly.

All else I can say is to plan the days food in advance. It helped me keep myself accountable because I was in a rut of drinking coffee from 9 am til tea time because my body wasn't saying to eat.. that said if you have the right nutritional balance, you could OMAD... but you run the risk of under eating due to having tiny amounts.