I've been using square plates
 

For some reason I feel like I have more on my plate if it is square. I bought some plain white 8x8's. Pile on the veggies and I feel like I'm having a lot more food. Not sure if tricking myself is good for 'moderation' but its working for me right now.

I've seen those square plates by Corelle at Wal-Mart! I think anything that helps you enjoy your food is a good thing.

I love my square corelle plates!

I have square ones from target that I love!! I like keeping my food separate, and the corners are wonderful.

I dont have square plates but I am using one of my dishes from my best set. It is smaller than my reg plates and a pretty shade of purple. I know understand what you mean about feeling like you get more food. Glad you found something that will work for you.
debi

That sounds like a good idea. I have boring round plates :(