Bruleed Winter-Bean Soup

Heat oil in a medium saucepan over medium heat. Add onion, celery, and carrot; cook, stirring occasionally, until tender, about 10 minutes. Stir in tomatoes with juices; cook 1 minute.

Add 4 cups water and Parmesan rind. Bring to a boil; reduce heat to a simmer and cook 20 minutes. Stir in beans and kale; cook, stirring occasionally, until kale is tender, about 5 minutes. Season with salt and pepper.

Heat broiler. Spread bread evenly on a rimmed baking sheet. Place under broiler and toast, tossing once, until golden, 1 to 2 minutes. Divide soup, croutons, and Asiago among 4 ovenproof bowls; drizzle each with oil. Broil until melted, about 1 minute; serve.