Combine shredded lettuce, sliced radicchio, halved/quartered tomatoes, chickpeas, avocado, cucumber, marinated artichokes, olives, and peppadew peppers, and provolone, salami, pepperoncini and red onion in a large, wide bowl. Drizzle about ¼ cup of the vinaigrette over the ingredients in the bowl, then toss gently to combine and coat the vegetables. Taste for seasoning and adjust with additional vinaigrette, salt, and pepper.