BRING broth and quinoa to boil in saucepan on high heat; simmer on medium-low heat 15 min. or until liquid is absorbed. Cool.
COMBINE tomatoes, cucumbers and onions in medium bowl. Add 1/4 cup dressing; toss to coat.
COVER platter with lettuce; top with quinoa, tomato mixture, cheese and remaining dressing.
serving size = 2 cups (500 mL)