Oh, that's hard! I would say it comes down to two - both I had in Portland, Oregon. One was a raw mushroom pizza at a place called the Blossoming Lotus, which served raw and cooked vegan food. It was so delicious and flavorful. The other was a burger from a place called Portobello, which makes dishes based on local ingredients, so the menu changes periodically. It was a beet burger with other veggies and grains - oh my gosh I have never tasted such a great burger. Take a look at their menu, it will make your mouth water.