Prep the produce: Wash and dry greens. Slice cucumber and radishes, halve the tomatoes, and finely chop the onion and herbs.
Make the dressing: In a small bowl, whisk lemon juice, zest, Dijon, garlic, olive oil, and honey.
Season with salt and pepper. Taste and adjust acidity or sweetness.
Toss chickpeas: Add chickpeas to a large bowl. Spoon over half the dressing and let them sit for 5 minutes to soak up flavor.
Combine the veggies: Add greens, cucumber, tomatoes, radishes, onion, and herbs to the bowl with chickpeas.
Dress and toss: Pour in the remaining dressing and gently toss until everything is glossy and coated.
Finish and serve: Top with seeds, red pepper flakes, or a few shavings of Parmesan if you like.
Serve right away or chill for 15 minutes for a crisper bite.