What fruit does budgies eat?

Budgies won't eat as much fruits as they will veggies, due to their desert origins. We've been keeping budgies for a little over 8 years, and what we've found out is they love: Sweet potatoe (peeled, raw), zuchinni, spinich, celery (especially the tops), carrots, and lettuce. I've only had a couple of parakeets that liked Apple; I guess they don't like sweets as much as we do.