When I moved to Vegas I thought it would be hard to find a place with great seafood. Half Shell cured my doubts. I've had the Mahi Mahi Tacos, the Ahi Tuna Salad, and the Fish and Chips-but my favorites have to be the Friday bisque, Coconut Shrimp and the Crab and Chicken Nachos. Coconut Shrimp here is a little cheaper than Red Lobster and they make the creamy pina colada sauce that I've searched the planet for. Crab Nachos are one of a kind and come with sour cream, salsa, jalepenos and guacamole without being requested.
Entres come with a side and a salad and portions are generous so I would recommend splitting some of your food if you plan on having their cheesecake. Flavors rotate seasonally but pumpkin and Oreo are surreal. I've only had one breakfast item (stawberry & banana pancakes) and I wasn't feeling it. I'm interested in trying the oatmeal though.
Happy Hour prices are good before 6. I put in an order at 5:55pm for a bucket of Corona lights. They stay on ice so that keeps me happy. Not a fan of the mixed drinks, though. In warmer months I eat on the rooftop at a couch. You can't beat the atmosphere with ESPN on 3 TV's and a view of the city behind you. On Fridays around 11pm it's a different atmosphere with hookahs and a DJ. Service on the roof is always better than eating downstairs at the booths across from the arcade games. You get all but ignored down there so I avoid it.
I know what Half Shell does best and I keep coming back for that same kind of experience. This is a casual place you frequent because the service is good, the atmosphere is great, and the food is tops.