What is the Trinity in Cajun Cooking?

Question: What is the Trinity in Cajun Cooking?

Answer:

"The Trinity," is a Cajun vegetable combination using equal parts bell peppers, celery, and onion. It is most commonly used to flavor soups, stews, and sauces. It’s French counterpart, known as Mirepoix, is equal parts carrots, celery, and onions.