Prepare the ingredients: Wash and dry all vegetables thoroughly. Chop the lettuce, slice the cherry tomatoes, dice the cucumber, shred the carrots, slice the onions, and prepare the avocado.
Assemble the salad: In a large bowl or plate, lay the lettuce and spinach as the base. Top with cherry tomatoes, cucumbers, carrots, red onion, avocado slices, and chickpeas.
Add cheese and herbs: Sprinkle the feta cheese (if using), parsley, and dill over the salad.
Make the vinaigrette: In a small jar or bowl, whisk together olive oil, lemon juice, Dijon mustard, honey, salt, and pepper until fully combined.
Dress the salad: Drizzle the dressing over the salad just before serving. Toss gently if desired.
Serve immediately or store the components separately for later use.