Makena gets about 1/2 cup of fresh stuff 3 times a day. And he usually polishes it all off! He loves anything in a pod (peas, green beans, edamame) and papayas. I make a big batch of whatever I have around about every 2-3 days. It usually consists of about 75% veggies and 25% fruits. It's always different stuff, depending on what looks good at the store and what's on sale on the frozen aisle.
Whenever I give him his bowl of food he immediately goes through it and takes out everything he doesn't like and throws it on the floor! Then he starts eating... What a turkey!!
We only give white foods (white bread, pasta, rice, potatoes) as a treat. If Makena had his way his diet would consist of 100% dried noodles! I usually always give him a little bit of whole grain bread, beans, popcorn, etc. if I am eating some but I don't typically add it to his mix.
Every grey is different and everyone feeds them a little differently, you just have to find what works! Good luck!