Place the flour on a plate and toss the chicken in it.
Pour the beaten egg on to a plate. Mix the breadcrumbs with the Cajun spice and parsley on a separate plate. Dip each of the chicken pieces in the beaten egg, then toss in the seasoned breadcrumbs and place on a large baking sheet.
Bake the chicken nuggets in a preheated oven, 200°C (400°F), Gas Mark 6, for 15–20 minutes until golden and cooked through.
Serve hot with tomato ketchup to dip, if liked.