The Treasure Valley, like the rest of the state, has undergone a significant transformation. Idaho's 5 Most Famous Restaurants Gallery Credit: Kevin MillerWith expansion, the area has celebrated the arrival of In-N-Out Burgers and other national chains. Unfortunately, several restaurants in our area are closing. What's Causing the Closing of So Many Restaurants in Idaho? According to Trip Advisor, these are 30 of the best in the Treasure Valley.