1. 1. Wash and chop all the vegetables.

2. 2. In a large bowl, mix together the lettuce, cherry tomatoes, cucumber, avocado, and feta cheese.

3. 3. In a small bowl, whisk together olive oil, lemon juice, salt, and pepper to make the dressing.

4. 4. Drizzle the dressing over the salad and toss gently to combine.

5. 5. Serve and enjoy!