There is a lot to be said about this, but in short: birds cannot live by seeds alone. The thing to feed parrots is a nutritionally complete pellet, supplemented by fresh fruits and vegetables (never avocado) and cooked pasta and beans.
My vet said no more than 10% of a bird’s diet should be seeded. Some people quite religiously (and with an air of self-righteousness) feed their birds exclusively pellets.
Given all of the talk about the importance of mental stimulation for parrots, I can’t imagine feeding my bird anything but pellets, pellets, pellets. I think he would become as bored as I would be if I were fed nothing but oatmeal.
parrot food furthermore, I once heard someone say that no one knows exactly what parrots need and that they should have their diet varied because it would help add mystery nutrients that weren’t in the pellets.
I wholeheartedly agree with this statement, since parrots have not received that much scientific attention over the years, although this situation is improving.
I don’t think even the most sanctimonious pellet feeder would deny that it is good to feed your bird fresh fruits and veggies. I work hard to keep up with what is poisonous to birds (avoid any kind of fruit seeds as a rule of thumb, and no rhubarb).
Remember to not mix wet food with dry food: use two separate dishes. Remove the wet stuff before you put the bird to sleep … or, in the hot summer months, as soon as it starts to seem off in any way. Don’t let being cheap do your expensive (and, hopefully, well-loved) parrot!
Finally, keep an eye on the bottom of the bird cage. Wet food scattered a la conure grows mold really quickly. Be sure to keep the cage extra clean so you don’t do your bird’s health any damage through neglect.