Preheat oven to 400°F (200°C).
Toss cooked quinoa with olive oil and a pinch of salt.
Spread quinoa on a baking sheet and bake for 18 to 22 minutes, stirring once, until golden and crispy.
Combine Greek yogurt or mayonnaise, fresh parsley, basil, chives, garlic, lemon juice, olive oil, salt, and pepper in a blender.
Blend until smooth and vibrant green.
In a large bowl, combine mixed greens, chicken, cucumber, cherry tomatoes, avocado, and red onion.
Drizzle the green goddess dressing over the salad and toss gently to coat.
Top the salad with crunchy quinoa and serve immediately.