There are photos of the CL lounge and the food on page one of the Poly thread here:
http://www.disboards.com/showthread.php?t=2863058
There is also lots of info on the concierge/CL thread (along with photos, which I think are really helpful).
Here's what I remember from our last time in Poly CL:
Breakfast -- cereals, breads, yogurt, fruit
Lunch -- they don't offer anything for lunch
Snack -- goldfish, gummy sharks, sometimes tortilla chips and cookies. Really nothing special.
Dinner -- there were different themes each night -- one night we had sushi, one night there was skewered chicken -- one night egg rolls. There are usually a couple of hot items, plus veggies, dips, uncrustables, and cheese and crackers. I think that tikiman has a list of what is available at night (or at least he did back when I was planning).
Dessert -- little tiny treats and cookies
It's definitely enough for breakfast (for my family), then we have a large lunch. Sometimes after the dinner appetizers we were too full to have dinner, but other times we weren't. Hope this helps.