Omakase (Japanese: お任せ? Hepburn: o-makase) is a Japanese phrase that means "I'll leave it up to you" (from Japanese "to entrust" (任せる? makaseru)).
In American English, the expression is used by patrons at sushi restaurants to leave the selection to the chef, as opposed to ordering à la carte. The chef will generally present a series of plates, beginning with the lightest fare and proceeding to the heaviest dishes. The phrase is not exclusive to service of raw fish with rice, and can incorporate grilling, simmering, or other cooking techniques as well.
Customers ordering omakase style expect the chef to be innovative and surprising in the selection of dishes, and the meal can be likened to an artistic performance by the chef. Ordering omakase can be a gamble, but the customer typically receives the highest-quality fish available at a lower cost than if it had been ordered à la carte.