Here are two great tables showing calories, protein, fat and carbs for virtually every food out there:
http://www.geocities.com/jmpeerson/canfood.html
http://www.geocities.com/jmpeerson/dryfood.html
http://www.geocities.com/jmpeerson/canfood.html
http://www.geocities.com/jmpeerson/dryfood.html