Pretty self-explanatory. It could be an ethnicity, such as Italian, or a style, like BBQ, or even a specific food, like pizza or cold sandwiches. It should be something that you could eat several nights per week.
For me it would be seafood cooked in either American or French style. Lobster, crab, scallops, shrimp, scrod, baked, boiled, or fried and drenched in butter and lemon juice. Baked potato and a house salad complete the meal.