(KNUE-FM) Granted, it seems crazy to talk about the most expensive dishes served at our Texas restaurants when prices are as high as they are. The Dallas Tasting Menu That Costs $300According to LoveFood, Monarch offers a $300-per-person tasting menu that includes king crab, lobster spaghetti, Wagyu steak, and caviar. The $1,000 Wagyu Steak in Houstonwagyu steak canva loading... But if we're looking at the most expensive single dish in Texas, it would appear that title goes to Mastro's in Houston. That dish still takes the crown for the most expensive single dish.