Finely chop the onion, and cut the carrots and parsnips into 1-2 cm ( 1/2 - 3/4 of an inch) pieces and cook them together with the onion.
While the vegetables are cooking, dice the chicken breast, zucchini and bell pepper and add to the pot to cook.
When the chicken begins to brown, add the Cajun seasoning, paprika, salt and pepper and simmer for 1-2 minutes, then add the canned tomatoes. Cook over low heat for about 10-15 minutes, then add the canned red beans (beans and liquid) and corn.
Simmer until the chili reaches the right consistency.
You can add chili peppers if you like it hot and also whatever herbs you like.