What is the best way to maintain healthy eating during recovery?

For eating disorder recover the best thing is to follow your meal plan your RD had made for you. Be honest. No cheating.

Remind yourself why you need to eat. Every living creature needs food to survive, and humans are no different. Eating well also helps to keep your mood in check, when you're hungry you often feel more agitate and grumpy than usual.

Always remind yourself how much you want to be healed. Don't overeat, don't under-eat, just always remind yourself what is going to be healthy for you and stay concentrated on that goal. Write sticky-notes, phone reminders, write it in your calendar, sharpie it on your arm. Just don't let yourself forget.

make sure its a well cooked meal lol (jk) has to be a stable and balanced meal should speed up recovery

From my personal experices I use a journal to chart my eating and set a meal plain in place to make shore that I eat what is needed and Never drink Cola or soda.

Just all you need to do is keep in mind the benifits and also how good you will feel because of your staying healthy.

Be kind to yourself and don't label any slip-ups as failure. Recovery isn't linear and sometimes you might still slip back into the unhealthy behaviors. Know that any slip-ups are a normal part of the process and focus on doing the healthy thing next time rather than dwelling on it.

I'm sure there is specific advice to be given depending on the kind of recovery you refer to (maybe you're pursuing sobriety from drugs/alcohol, or had been engaging in disordered eating, etc.) but something more general that has helped me is learning to accept that every day will not be perfect. There will be days when I slip back in to old habits, days when I was healthy but still don't feel good about my efforts, days when I am proud of myself for finally getting the hang of healthy eating -- and everything in between. Keeping a journal can also be helpful, especially if you are looking to identify triggers that could be making it harder to maintain healthy eating.