Preheat broiler. Place bell peppers on broiler pan. Broil 4 to 6 inches from heat about 6 minutes, turning every 2 to 3 minutes or until all sides are charred. Transfer bell peppers to paper bag; close bag tightly. Let stand 10 minutes or until cool enough to handle and skins are loosened. Peel bell peppers. Cut peppers in half. Remove cores, seeds and membranes; discard.

Add shrimp to large saucepan of boiling water. Reduce heat to medium-low; simmer, uncovered, 2 to 3 minutes or until shrimp turn pink. Drain shrimp; rinse under cold running water. Cover; refrigerate until ready to use.

Place bell peppers and garlic in food processor. Cover; process until coarsely chopped. Add cilantro, lime juice, orange juice and pepper sauce; process until cilantro is finely chopped but mixture is not puréed.

Combine jicama, shrimp and tomato in large bowl. Add bell pepper mixture; toss to coat evenly. Serve over lettuce, if desired.