How do I get my new cockatiel to eat fruits and veggies?

Cockatiels need green veg as a supplement to a seed diet, these are the best Broccoli, Kale, Cress, Spinach, Sweet Corn cob,Carrot including tops put small portions in it's cage, also soaked sprouting seed, some Cockatiels are not that keen on fruit , but you can always try Apple ,Pear, Grapes, Mango.

Never give Lettuce or Avocado.You can find a good list on the Cockatiel Cottage Web site.,

My cockatiel doesn't like much fruit I hang a skinny slice of apple and she does eat it. She likes a lot of veggies but, only cooked and I do add a little bit of butter. She loves cooked cauliflower, cooked mashed potatoes. Keeo trying everything kale, mustard greens, peas and etc.