Chopped Greek Salad with Avocado

Persian cucumbers or 1 seedless, chopped

campari tomatoes*, chopped or quartered

green bell pepper, seeded and chopped

avocado, chopped

red onion, thinly sliced

pitted Kalamata olives

chickpeas, drained and rinsed

feta chunk, preferably in brine, divided (see note)

extra-virgin olive oil

red wine vinegar

lemon, juiced

garlic cloves, minced or pressed

dried oregano

crumbled feta (see note)

kosher salt and black pepper,