We are staying in South Rim 6/27 -6/29. What are the best bets for reasonably priced food? I am not looking for haute cuisine, but my best bets for feeding 2 hungry teens. Should we plan on going to Tusayan for lunch/dinner? Or is the food just as expensive and mediocre there? Is there a charge for each time you enter the GC? (That would hike up the cost for going out of the park to eat.) Thanks.