Rinse red lentils under cold water until the water runs clear. This removes surface starch that causes clumping. I learned this the hard way after my first batch turned into mush—clear water is the visual cue you're done.
Bring 2 cups water to a boil in a medium saucepan. Add rinsed lentils and reduce heat to medium-low. Simmer for 18–22 minutes until lentils are tender but still hold their shape, which is why timing matters here—overcooking destroys the beautiful summer lentil salad recipe's texture.
Drain lentils completely in a fine-mesh strainer. Transfer warm lentils to a large mixing bowl immediately because warm lentils absorb dressing better than room-temperature ones. This technique is what separates elegant protein salads from forgettable ones.
Whisk together olive oil, lemon juice, and honey in a small bowl. The dressing should taste slightly tangy—you want it to cut through the richness without overwhelming delicate vegetables. Pour this dressing over warm lentils right away, not after cooling.
Add cooked quinoa, chickpeas, grilled chicken, cherry tomatoes, cucumber, and red onion to the lentil mixture. Toss gently to combine, ensuring every component gets coated. I use a wooden spoon rather than salad tongs because metal utensils sometimes bruise the softer ingredients.
Fold in fresh parsley and mint just before serving or within 2 hours of assembly. Fresh herbs oxidize quickly if added too early, dulling their brightness. This step keeps the salad tasting garden-fresh rather than processed.
Taste and adjust seasoning with additional lemon juice or honey as needed. Some prefer more acidity; others want sweetness—your preference is the only guide here. Let this rest for 15 minutes before serving to allow flavors to meld completely.