In a large bowl, combine the chopped iceberg lettuce, halved cherry tomatoes, diced cucumber, thinly sliced red onion, diced avocado, chopped bacon, and shredded rotisserie chicken.
Gently toss to distribute the ingredients evenly.
Sprinkle the crumbled feta cheese over the top.
In a small bowl or jar, add the Dijon mustard, honey, olive oil, fresh lemon juice, salt, and pepper. Whisk until the dressing is smooth and fully emulsified.
Drizzle the honey mustard dressing over the salad and toss gently until everything is well coated. Serve immediately.