Related Clues:

• Sushi base
• Starchy cereal principally served in the past
• Onigiri component
• Main ingredient in pilaf
• With 20-Across, "The San Francisco Treat"
• Sushi component
• Something tossed at weddings
• Ingredient in boba pearls
• Arancini ingredient
• Grain in 26-Down
• Grain in onigiri or sushi