Cook lentils until just tender but still holding their shape (about 20-25 minutes), as overcooking creates mushiness and prevents proper vinaigrette absorption.

Dress the warm lentils and chickpeas immediately after cooking so they absorb the vinaigrette deeply, creating more flavorful and cohesive salad throughout.

Drain and rinse canned chickpeas under cold water to remove excess sodium and starch, which prevents a gummy texture and allows better flavor penetration.

Use a 3:1 ratio of olive oil to acid (white wine vinegar plus lemon juice) to ensure the dressing coats ingredients without becoming too acidic or heavy.

Keep romaine lettuce separate and toss it in just before serving to maintain its crispy texture, preventing wilting from prolonged contact with the vinaigrette.