I use the no color added pellets in one dish and a small amount of mixed dried fruits, vegies and pumpkin seeds in another. This way he can get a mix, the pellets as a base food and then he can pick thru the others to find what he wants thru out the day. When we have all settled in for the eve I give him fresh foods. I figure this is a good variety and I also don't have to leave fresh stuff rotting all day.
For the pellets I use a mix of Zupreem natural and Roudybush. Jellybean seems to prefer the little ball shaped pellets but is slowly taking to Roudybush too.
Mysafebirdstore has several good dried mix foods. Its really a matter of figuring out what your bird will eat. Mine doesn't like banana, so a mix with lots of banana is out. They are supposed to not use sulfur so you should be set ordering from them. I like Higgins fruit and stix from my local store too. I have a chewer and he loves cinnamon sticks. I like most of the Higgins brand snacks.