I give my birds, lots of veg and some fruit.
I sometimes do spinach, apple, dark leaf lettuc or bok choi.
Today I gave them some chopped kale, broccoli, carrots and red peppers.
This was mostly for my parrotlet, Bee Bee, so the chunks are a little bigger than I would normally chop for finches.
But heres a picture of their 3 dishes to give you an idea

(finches dishes are the two on the left. Bee Bee's is the one on the right with more stuff in it) With hers I mix in crushed pellets till its a nice consistancy (I didnt take a picture of that, so this is the before shot lol). She wont eat pellets unless I have blended them to a powder in a food processor. I thought this was a good way to get her to eat them
What fresh foods do you feed your birds?