If you want to start easy then I would say a good black bean burger I use the ones from Gardein they are really good and they make good meatballs too.
Stick to whole wheat bread and rolls and switch to a milk alternative, rice, almond, cashew, hemp soy and so forth.
I'm gonna look up some of my favorites and send you the recipes.
If you give it a honest try I think you'll like it plus i can tell you what you can eat at certain fast food places.