Sashimi Omakase Platter

Ensure your cutting board is clean and stable. Sharpen your sashimi knife (yanagiba or a very sharp chef's knife) to a razor's edge. Prepare a bowl of ice water with a clean cloth to wipe your knife between slices.

Gently rinse the sashimi-grade fish fillets under cold running water and thoroughly pat them dry with paper towels. Remove any remaining bones or skin if present. Keep the fish chilled until ready to slice.

Place the tuna fillet on the cutting board. Using a single, long, swift stroke with your knife, slice the tuna against the grain into uniform pieces, about 1/4 inch thick. Aim for clean, smooth cuts without sawing motions. Wipe your knife after each slice.

Repeat the slicing technique for the salmon and yellowtail, aiming for similar thickness and consistency. For scallops, you can slice them horizontally into 2-3 discs or serve them whole, depending on their size.

Chill your serving platter before arranging. Begin placing the sliced sashimi on the platter, varying colors and textures for a visually appealing presentation. Arrange in an omakase style, meaning a chef's choice or artistic presentation, often with height and depth.

Garnish the platter with a mound of finely julienned daikon radish, fresh shiso leaves, and lemon wedges. Serve immediately with small bowls of soy sauce, freshly grated wasabi, and pickled ginger on the side for individual dipping.