When my DH decided to try to the Boathouse we weren't on the dining plan that trip and we paid OOP. We were very surprised with the bill, it can be as high or as reasonable as you choose. We were without our 20 something year old kids and we decided to try most of the signature restaurants. The Boathouse was one of the if not the most reasonable.
We definitely shared everything, the portions are very large and we had a drink. No room for dessert and we wanted to walk around DSprings and find something after we digested. Our waitress was beyond amazing and so was the rest of the staff, she recommended sharing so we can try more items and she was the one the raved about the burger initially.
We had for appetizers the Tuna poke & Beef Carpaccio. For dinner we ordered the fish tacos and the burger & two draft beers. The bill was approx $85 w/o Tip.
Hope this helps...Enjoy