I have been cooking the Higgins Cuisines and I add some peppers, cooked sweet potatoes,apple , jalepeno peppers,kale and carrots to it after I cook it also I add a few Tablespoons of frozen veggies and last I add about a half a Tablespoon of Red Palm Oil , you could try the Higgins Cuisine all my birds love it and see what you think , you just have to keep giving your bird veggies over and over untill they eat them , our amazon Rocky doesn't eat to much veggies but I put it in his food bowl every night and leave it there for about an hour or a little longer he will eventually eat some of it not alot but some ,my other birds eat alot of veggies compared to Rocky
you can try cooking him some 15 bean mix or some cooked sweet potatoe ,none of mine will turn down a bean or sweet potatoe