Yes — cauliflower is safe raw or cooked, nutritious, and its florets double as a natural foraging toy.
Keeper's noteRaw or lightly steamed. Some birds prefer it to broccoli; the leaves are an often-discarded bonus green.
Why cauliflower is good for parrots
Cauliflower is a cruciferous vegetable rich in vitamin C, vitamin K, and fiber, with no toxicity concerns. Leaves, florets, and stalk are all edible. Like broccoli, the floret structure makes it good for stuffing and foraging.