"If we told you everything gets dumped into a pot and then cooks for only 18 minutes, would you believe us?!..."
large onion, chopped
medium carrot, peeled and chopped
stalks celery, chopped
cloves garlic, minced
green lentils
(14.5-oz.) can diced tomatoes
fresh thyme
Italian seasoning
Kosher salt
Freshly ground black pepper
low-sodium chicken or vegetable broth
baby spinach
Freshly grated Parmesan, for serving