How to Make It
Bring the broth to a boil in a medium saucepan; gradually stir in couscous. Remove from heat; cover and let stand 5 minutes. Fluff with a fork; cool.
Combine cooled couscous, carrot, and remaining ingredients except lettuce leaves in a large bowl; toss well to combine. Spoon about 2/3 cup couscous mixture into each lettuce leaf.