thank you to all responses! we have 3 adults 1 kid. So sounds like the best plan for all 4 of us would be to use 2 credits, let the kid order from kids menu for free, and let the remaining adult to order something light on the menu and share with the other two adults.
btw off topic, I was just able to switch my club balcony room to balcony room 8138 (which I believe is the secret cabin with huge balcony) for $200 less. Yay!