In a large skillet, heat oil then stirfry onion, garlic, basil, salt and pepper for about 2-3 minutes or the onions are translucent but not turning brown. Meanwhile, in a large bowl, beat the egg. Then add onion stirfry mixture, ketchup, Worcestershire sauce, and parsley. Stir. Add ground chicken and bread crumbs, kneading with your hands until completely combined.