Kasai is a tiny little sushi place on the main street in downtown Carnegie. I have driven past the place a thousand times but never stopped. So I decided to give the place a try. They only serve sushi, the menu had a note explaining that hibachi was not available. We ordered some gyoza, a variety of nigiri and 4 rolls. The service was quick and there were no issues. The fish was fresh and on par with most sushi places in the city. After the meal they gave us some red bean pancakes and a handful of delicious hello kitty chocolate filled marshmallow treats. Overall I would say this place is a definite try. Parking is free and right across the street, the food is good and the place is clean.