The key to this dish is to leave the heavy lifting to a fish purveyor, who often will steam the shellfish and shuck the oysters for a minimal charge. Make the simple sauces earlier in the day, and your work is done. For the serving tray, buy crushed ice or place a few cups of ice in a plastic bag, wrap in a dish towel, and crush using a rolling pin or a meat tenderizer.
Harvested by hand, pearly sea scallops showcase their natural sweetness and silken texture in this simple chilled appetizer. Juicy grapefruit and aromatic mint heighten the refreshing tang of the citrus marinade, while slivers of onion and chile impart a subtle heat.
Baby spinach and red mustard leaves are more tender and spicy than the familiar varieties of those greens. You can use other spicy baby lettuces, such as chard and tatsoi, or look for packaged blends (sometimes called spring or Asian mix) in many supermarkets.