I made this cooked salad- I’m calling it Mediterranean chickpea salad. I ended up also adding tomatoes at the end! What dressing would be good??

Chickpea/chicken Mediterranean salad

Soy butter in pan, then add already boiled chicken breast from fridge. Add chickpeas, add sliced artichokes, add roasted onion that was oven roasted already, salt/pepper/herbs de Provence/garlic powder/onion powder. Turn off heat add fresh arugula, mint, and dill. Drizzle with olive oil and add tomatoes around the edge