Recipe: Ice-cube-tray sushi

Ingredients

• 7 ounces sashimi-grade salmon, cut into1/4-inch cubes
• 3 scallions, chopped
• 1/4 cucumber, finely chopped (3 tablespoons)
• about 5 grape tomatoes, finely chopped (3 tablespoons)
• 2 teaspoons lime juice
• 1 teaspoon orange juice
• 2 1/2 tablespoons mayonnaise
• 1/4 teaspoon sesame oil
• 1/4 teaspoon salt
• 1/8 teaspoon pepper
• 2 cups cooked rice (preferably from a Japanese or Chinese restaurant)