I don't give sweets even fruit until they are older, you know how a sweet tooth is with kids. If they get sweets they will turn their beaks up at the veggies.
That's good, have you given them the insides of the squash? mine love the seeds and guts of squash and pumpkin. Overgrown cucs from the garden too, cut them open and the love the insides.
Mine LOVE kale they prefer that I hold it so they can pull pieces off!
Today the girls have had corn on the cob that was frozen last fall specifically for them!
Cooked up some oatmeal and added a bag of frozen broccoli that was a little old. All warmed up for them because I feel bad for them in this cool rainy weather we've had all week.