On red you get 1/2P, so that's why you might see that. But... since I switched to purple, COD said if I am going to split my protein, make sure it's the same thing. So one of my favorites is taking the 3 eggs and having one for breakfast and having the other two at lunch w/mayo and making egg salad.
As for dairy, I've always split that, and they've never said anything about it. Also, if you look in their cookbook, there are a LOT of 1/2 dairy exchanges. I think they are more concerned about splitting the starches and proteins.
As for veggies, they want you to have one whole veggie of one thing. If your body isn't reacting negatively, maybe you could make one big salad with three or four veggies, and eat half at lunch and half at dinner? I think the main veggies they want you to watch out for, though, are carrots and tomatoes because they are so high in sugar.
TURKEY DAY CHALLENGE