A steamer will not make your bread crispy. It makes it warm and soft. You need a griddle or grill for crispy bread. Hot dogs are not generally though of as being healthy. It might be different in Denmark. We can’t really tell you what your customers would want except that they want food that tastes good at a reasonable price. And listen to your customers. They will tell you what they want but don’t be afraid to introduce them to new tastes and combinations. Last summer, when we first came to this small town in New Mexico, many of the people here did not know what sauerkraut was. This summer, sauerkraut is outsells chili. But the Pueblo Indians still won’t touch it.