The great thing about eating vegan is you can stuff yourself to your hearts content, and not gain weight. So it's a natural way for dealing with your ED. I eat lots of oats and oat based meals. My breakfasts are usually a large (1cup) bowl of oatmeal with a huge dose of fresh fruit and milled flax seed with almond or coconut milk.
Lunch is always some fresh salad of spinach with raisins and oil and soy sauce. Or some version of cole slaw with veganaise.
I make homemade vegan burgers from lentils or chick peas (lentils dark "meat", chick peas light "meat" lol)
I eat lots of whole grain rice, pasta, veggie pastas, lentil/barely/veggie soups, etc.
After a workout, I love mixed nuts topped with honey (oops, my one non-vegan weakness) and cinnamin...
Or try mixing natural peanut butter with molasses, almond milk, and some cheerios.
My point is, if you stick to these high fiber foods, you can literally eat as much as you wish, and you'll maintain your natural weight.
Good luck, and if you want to talk more, I'd love to at firstname.lastname@example.org