Make the dressing: In a small jar, combine olive oil, red wine vinegar, Dijon, garlic, oregano, basil, red pepper flakes, and honey. Add a pinch of salt and pepper. Shake until emulsified and taste for balance.
Prep the greens: Chop romaine and radicchio into small, bite-sized pieces.
Pat dry with paper towels to keep the salad crisp.
Chop the mix-ins: Dice cucumber, halve tomatoes, finely chop red onion, and slice pepperoncini and olives. Chop roasted red peppers.
Add protein: Cut the cooked chicken into small cubes or shred it. If it’s cold, you can quickly warm it in a skillet with a splash of olive oil and a pinch of salt for extra flavor.
Combine: In a large bowl, add greens, chicken, chickpeas, tomatoes, cucumber, onion, pepperoncini, olives, and roasted red peppers.
Toss with dressing: Drizzle on about two-thirds of the dressing and toss thoroughly.
Add more as needed to lightly coat everything without drowning it.
Finish with cheese: Fold in mozzarella or provolone and sprinkle Parmesan over the top. Taste and adjust salt, pepper, or acid.
Serve: Plate immediately for max crunch, or chill for 10 minutes to let the flavors mingle.