In a large bowl, add the tomatoes, cucumber, avocado, onion, olives, and one oz feta cheese. Gently toss to combine.
In a small bowl, whisk together the olive oil, lemon juice, salt, pepper, garlic, Dijon mustard, and herbs. Crumble in 1 oz feta cheese and stir until combined.
Pour the dressing over the salad and gently toss.
Serve and enjoy, friends.