Brown beef in a Dutch oven over medium-high heat, stirring often, 6 to 8 minutes or until beef crumbles and is no longer pink; drain well. Return beef to Dutch oven; sprinkle with chili powder, Creole seasoning, and cumin, and sauté 1 minute.
Stir in diced tomatoes and next 2 ingredients, and bring to a boil over medium-high heat, stirring occasionally. Cover, reduce heat to low, and simmer, stirring occasionally, 15 minutes.
Slice tops from 16 dinner rolls, and then let guests hollow out centers and spoon chili into them. Serve with toppings.