How to Make It
Cook the barley according to the package directions. Drain and run under cold water to cool.
Meanwhile, in a small bowl, whisk together the oil, lemon juice, and ½ teaspoon each salt and pepper.
In a medium bowl, toss the lettuce with half the lemon dressing. In a second medium bowl, toss the barley, lentils, carrot, onion, olives, and cucumber with the remaining lemon dressing. Serve the barley mixture over the lettuce and sprinkle with the goat cheese.