I was told $39 (for one person), which covered steak, juice, potatoes, another side, etc. Their breakfast items are priced very reasonably for room service.
However, they didn't clarify whether the $39 includes tax, delivery fee, service, etc. In my case, I was under $39 on just the food, but over including tax/delivery/service and everything was comped.
IIRC the charge for the breakfast buffet was in the $12-15 range.