Which dish is primarily red in color due to tomatoes?

The dish that is primarily red in color due to tomatoes is the one that refers to tomatoes directly. Tomatoes are known for their vibrant red hue, making them a key ingredient in many dishes that exhibit a red color profile. When considering the options, the dish that literally invokes the primary ingredient responsible for the red coloring is the most straightforward answer.

While the other choices may incorporate tomatoes or have elements of red in their appearances, they do not specifically highlight tomatoes as the central component that defines their color. For instance, gumbo is a stew that varies in color and can be made with a variety of ingredients, red bean and rice features red beans which contribute to its color but do not dominate with the hue of tomatoes. Firehouse chili may also contain tomatoes but is more known for its meat and bean composition, which dilutes the tomato influence. Thus, defining the dish primarily by its tomato content leads to identifying tomatoes as the correct answer.