Brown Rice Sushi

Cook rice as directed on package, omitting salt; spoon into medium bowl. Stir in sugar and vinegar.

Mix mayonnaise and Sriracha sauce in separate medium bowl until blended. Add shrimp; mix lightly.

Place sushi mat, with slats running parallel, on work surface. Place 1 nori sheet, shiny side down, on mat lining up 1 long edge of nori sheet with edge of mat nearest you. Use moistened fingers to evenly press half the rice mixture onto nori sheet, leaving 1-3/4-inch border on long side of nori sheet farthest from you. Place half the shrimp mixture in even row 1 inch from bottom of nori sheet; place half each of the cucumbers, carrots and avocados in rows next to shrimp.

Use your thumbs to lift up bottom edge of mat nearest you while holding filling in place with your fingers; fold mat over filling. Squeeze gently but firmly along length of roll, while tugging edge of mat farthest from you to tighten. (Nori border will still be flat on mat.) Open mat and roll log forward to seal with nori border. Transfer roll, seam side down, to cutting board.

Repeat with remaining ingredients to make second log. Use moistened sharp knife to cut each log into 6 pieces to serve.