The lines form around 11:30 for the opening at noon. There are only 12 tables and the restaurant is staffed by the sushi master and his wife handles front of the room.
The food is fantastic and I will let the photos tell the story. There is a lunch menu from which we made our choices. Recommended: the curry udon soup ; and the salmon salad; but everything here is great.
On most days Sushi Miyagi is open only from 12 to 3 (see photo of business hours). I can't recommend this place highly enough. A Houston institution.