INGREDIENTS
•
1cupgrated Parmesan (about 4 ounces), plus one 3-inch piece Parmesan rind
•
kosher salt and black pepper
•
2tablespoonsolive oil
•
1medium onion, chopped
•
6cupslow-sodium vegetable broth
•
4sprigs fresh thyme, plus leaves for serving
•
210-ounce bags frozen peas (about 4 cups)
•
1/2cuplow-fat plain yogurt