Preheat oven to 350.
Mix zucchini, onion, garlic, breadcrumbs, 1/4 cup peri peri, egg, chili and salt together in a large bowl.
Add the chicken and combine until mixed through.
Separate chicken into four equal portion, place in a ramekins, top with ketchup.
Bake uncovered for 30 minutes until chicken is fully cooked.