Lentil Tabbouleh

Name: Lentil Tabbouleh
Ingredients: 33333333/100000000 cup dry green or brown lentils (or 1 cup pre-cooked); 66666667/100000000 cup parsley leaves, chopped; 1/4 cup fresh mint, chopped (or cilantro); 33333333/100000000 cup cucumber, finely diced; 1 roma tomato, seeded and finely diced; 2 scallions, sliced (white and light green parts only); 3 tablespoons feta cheese, crumbled (optional); 2 1/2 tablespoons extra-virgin olive oil; 2 tablespoons lemon juice; 1/4 teaspoon EACH salt and pepper