Place 6-8 ounces crispy lettuce in a large bowl, sprinkle a little salt over the greens, and toss to coat.
Add the remaining ingredients to the bowl: 1 medium-large tomato (chopped), 1 cup peeled and diced cucumber, 1/2 cup chopped roasted red peppers, 1/2 cup chopped marinated artichokes, 1/2 cup chickpeas (rinsed and drained), 1/3 cup chopped pepperoncini, 1/2 avocado (chopped), optional 1/2 cup chopped mozzarella, and 2 cups chopped grilled chicken or 1 cup chopped deli turkey.
Drizzle 3 tablespoons extra-virgin olive oil and 2 tablespoons balsamic vinegar over the salad, add cracked black pepper and additional salt to taste, then toss with tongs or salad utensils to coat the ingredients evenly with the dressing.
Eat immediately once dressed; the salad is best right after tossing.