I'd recommend you look at the wonderful charts for carb content on diet doctor
Visual low carb guides Which vegetables are best on a low carb diet, can you have berries and which nuts have the fewest carbs? What should I choose to drink at a party? Check out our visual guides to low carb, which can help you make better choices!
www.dietdoctor.com
They cover many real foods and are a great way to build up a meal with low carb ingredients.
Also all their recipes are carb counted and you can access a lot of their info for free.