PLACE citrus segments in large bowl. Cook sugar, water and peppers in saucepan on medium heat 3 to 5 min. or until sugar is dissolved, stirring occasionally. Cool slightly. Pour over fruit; mix lightly. Refrigerate at least 4 hours or up to 2 days.
FOR each serving: Toss 2 cups lettuce with 1 Tbsp. dressing; place on serving plate. Top with about 1/3 cup fruit segments (preferably adding 2 segments of each of the fruits) and 1/4 cup each cheese and sprouts. Sprinkle with 1/2 Tbsp. sunflower kernels.