In a small bowl or jar, whisk together the olive oil, red wine vinegar, garlic, Dijon mustard, Italian seasoning, salt, and black pepper until smooth and emulsified.
In a large serving bowl, combine the chopped romaine, cooked chicken, diced turkey bacon, cherry tomatoes, avocado, red onion, and blue cheese.
Pour the vinaigrette over the salad.
Gently toss everything together until evenly coated without breaking up the avocado.
Serve the Chicken Bacon Avocado Chopped Salad immediately for the freshest flavor and texture.