Preheat your oven to 190°C and line a large baking tray with baking paper.
Spread panko crumbs over the tray and bake for 5 minutes until lightly golden. Remove and pour into a bowl for crumbing later—you can reuse the tray and paper for the nuggets.
In a food processor, blend the peas, carrot, zucchini, eggs, salt, and garlic powder (if using) until well combined. Tip the mixture into a bowl and gently fold through the chicken mince—this keeps the texture nice and tender.
Form the mixture into nugget shapes using about 1 heaped tablespoon per nugget (makes around 24).
Set up a crumbing station with flour on one plate, whisked eggs in a bowl, and panko crumbs in another bowl.
Dip each nugget into the flour, then egg, and finally coat in the toasted panko crumbs. Place each nugget onto your prepared baking tray. Brush or spray with olive oil.
Bake for 25–30 minutes, or until golden, crispy, and cooked through.