Wash and chop the romaine lettuce. Place it in a large salad bowl.
Add the halved cherry tomatoes, diced cucumber, sliced red onion, and diced bell pepper to the bowl.
Top the salad with the shredded or diced cooked chicken breast.
In a small bowl or jar, whisk together the olive oil, lemon juice, Dijon mustard, and honey.
Season the dressing with salt and pepper to taste. Whisk until well combined.
Pour the dressing over the salad and toss gently to coat all ingredients.
Serve immediately.
Notes
Feel free to customize this salad with your favorite vegetables and proteins. Other great additions include avocado, corn, black beans, or grilled shrimp.