For the Salad:
Bring a large pot of salted water to a boil over high heat. Add the lentils and cook until tender, stirring occasionally, about 18 to 20 minutes. Drain and let cool for 5 minutes. Place lentils and remaining salad ingredients in a large salad bowl.
For the Vinaigrette:
Place the lemon juice in a small bowl. Slowly add the oil, whisking constantly, until combined. Season with salt and pepper, to taste
Pour the vinaigrette over the salad and toss well.
Recipe courtesy of Giada De Laurentiis, 2008