What is the name of the Cajun corn dish that includes bell pepper and onion?

The Cajun corn dish containing bell pepper and onion is called maque choux.

Maque choux is a traditional Louisiana dish built around corn, green bell pepper, and onion. The vegetables are typically braised together until tender, often with bacon grease, butter, oil, or cream. Garlic, celery, okra, tomato, chicken stock, and hot sauce may appear in different versions.

The dish is thought to reflect both Creole and Native American influence. Its name probably comes from a Native American term adapted through French, although the precise etymology is not completely settled. That blended background mirrors the broader history of Louisiana cuisine.

Maque choux is usually served as a vegetable side dish, but it can also become a main-course base with chicken, crawfish, or shrimp. It is not the same as succotash, which traditionally combines corn with beans, nor is it corn pudding, which has a softer, custard-like structure.