Yes — sesame seeds are safe and a good source of calcium and healthy fats. Offer them plain and unsalted.
Keeper's noteA sprinkle over chop adds calcium painlessly. Plain tahini (just ground sesame) in a thin smear is an occasional option too — check it has no added salt or sugar.
Why sesame seeds is good for parrots
Sesame seeds are non-toxic and notably calcium-rich, along with protein and healthy fats — useful for bone and eggshell health. They're tiny and easy for most species to eat. Plain seeds are best; salted or sugared sesame snacks are not.