Lentil Salad with Summer Vegetables

Name: Lentil Salad with Summer Vegetables
Ingredients: 1 cup Puy lentils; 2 garlic cloves , smashed; 1 bay leaf; Handful of parsley stems, tied together with a string; 2 1/2 cups water; 3 stalks celery , diced small; 1 yellow pepper , diced; 1 pint grape or cherry tomatoes , halved; 1/4 cup minced red onion; 1 cup baby arugula; 3 tablespoons lemon juice; 3 tablespoons extra-virgin olive oil; 1 tablespoon fresh minced parsley; Zest from 1/2 lemon; 1/2 teaspoon kosher salt; 1/4 teaspoon dried oregano; 1/4 teaspoon sugar; 1 tablespoon minced shallots; Kosher salt and freshly ground black pepper , to taste