Method:
Place the lentils, water, salt and bay leaf in a pot and bring to a boil. Reduce heat to a simmer and cook until lentils are tender but not mushy, 20 to 25 minutes. Strain lentils and transfer to a bowl of ice cold water to cool. Let cool completely, then drain and put in a large bowl.
Add pepper, tomatoes, onion, cucumber, chickpeas and jalapeño to lentils. Gently stir to combine, taking care not to mash the lentils. Drizzle with oil and lemon juice and season with salt and pepper. Mix well, taste and adjust seasoning. Serve over salad greens if desired.