Hi Tasty, I did Super Nachos for 300 people on Sunday, I put them on a 9″ plate, portion size 2.5 oz of Tortilla chips. I would use a one size 3# FF boat, for “Tasties Super Nachos” Tortilla Chips, Spicy chili, Jalapeno Cheese, Sliced Jalapenos, Chopped Tomatoes, Chopped onions, sliced olives, salsa & Sour Cream. I like the idea of offering a Chili dogs with a side of chips & cheese in a 3# boat, you could also offer Chips and cheese for a lower price………………..Good luck…………When dealing with the HD on new items, make sure you know what your doing and how they will be served. If the HD has complete confidence that you can serve these items safe, it may open up your menu to other items…………BillyB