Breeding Diet?

Hello!

okay, I know this is really bad of me, but I do not currently give my birds a breeding diet. These are show budgies (and a couple pets) so I realised I probably should be giving them something other then what they get. They have seed,water and a veggie mix I make up every other day. I was just wondering what soft food, pellets or crumb mix I could give them? They are not exactly into eating new things, so It may need to be green and leafy .

Thanks guys!