Here are some profitable food truck business ideas ^{1 2}:

1. Catering: Offer catering services with your food truck.
2. Festivals and events: Sell your food at local festivals and events.
3. Sidewalk vending: Set up your truck in high-traffic areas.
4. To-go orders: Sell takeout orders directly from your food truck.
5. Ghost kitchen: Use your food truck as a base for delivery-only orders.
6. Create consumer packaged goods (CPG): Package and sell your signature food items.
7. Barbecue: Offer grilled meats and vegetables.
8. Mexican: Serve tacos, burritos, and other Mexican dishes.
9. Italian: Offer pasta, pizza, and Italian sandwiches.
10. Asian Fusion: Combine flavors from different Asian cuisines.
11. Falafel: Serve Middle Eastern falafel wraps.
12. Grilled Cheese: Offer gourmet grilled cheese sandwiches.
13. Crepes: Serve sweet and savory crepes.
14. Burgers & Fries: Classic American comfort food.