Poblano Chilies Stuffed with Black Beans and Summer Squash

Name: Poblano Chilies Stuffed with Black Beans and Summer Squash
Ingredients: 8 poblano chilies; 2 Tbs. extra-virgin olive oil; 1/2 white onion, finely diced; Sea salt, to taste; 1 zucchini, diced; 2 yellow summer squash, diced; 1 ripe tomato, diced; 1/4 tsp. cayenne pepper; Pinch of freshly ground black pepper; 1 can (15 oz.) black beans, drained and rinsed; Leaves from 1/4 bunch fresh cilantro, coarsely chopped; 1 cup cooked white rice; 1/2 cup crème fraîche; 1 small chunk Parmigiano-Reggiano cheese