I know this is an old thread, but I'm on the vegetarian plan and I've found a couple of nice protein options.
My favorite is Nate's Meatless Meatballs in the savory mushroom flavor. I saute mushrooms and green onions, add a little water and then add the balls. I add the 4 oz cooked veggies and break up the meat, adding more water, cumin, garlic powder and mrs dash...yum!
Quorn brand Naked Chik'n Cutlets are pretty tasty. I wrap one in a wet paper towel and put it in the microwave for 2 mins. I sprinkle it with mrs dash, cut it into chunks and mix it in with my big salad.
I'm not a big fan of imitation meat, mostly because I went vegetarian last fall to eat more natural whole foods and when you read the ingredients of most veggie "meats" they are full of junk or soy (which really isn't the greatest, but that's a whole 'nother thread

). The Quorn cutlets are soy free and made of mycoprotien, which is a type of mushroom. And Nate's does have some soy, but it's mostly made of mushrooms too. Both of these also had the most amount of protein with the least fat and carbs, compared to some of the other options, so they seem to fit in the plan well.
Happy eating!
