According to 247wallst.com, the most expensive restaurant is Montana is TEN is Billings. The restaurant is located inside of The Northern Hotel. According to their website, this is what TEN is known for:

"Serving traditional American cuisine, with unique international flavors, TEN’s menu offers nationally renowned steaks, fresh seafood, using only the finest, freshest ingredients, masterfully prepared in recipes designed to engage all your senses."

At Ten, the average entree price is is $36.93. The most expensive item on the menu is the 48-ounce Colorado rib-eye, known as the Tomahawk. It'll cost you $68. However, I don't think consuming that much meat in one meal is easy on the ol' ticker. The Tomahawk is one of the many dishes that make this restaurant the priciest in Montana.

TEN is named after Thomas E. Nelson, the father of the owners of the Northern Hotel, where the restaurant resides. Click here to check out the menu.