Sausage and Chard Soup

Warm oil in a pot over medium heat and cook sausage until browned, about 10 minutes; transfer to a plate. Add onion and celery to pot and sauté until beginning to brown, 10 to 12 minutes. Add garlic and red pepper; sauté for 1 minute.

Pour in broth, raise heat to high and bring just to a boil, scraping up brown bits from pot. Return sausage to pot; stir in tomatoes and beans. Bring back to a boil, reduce heat to low; simmer for 15 minutes.

Season soup with salt and pepper. Stir in chard; cook until wilted, about 1 minute. Stir in parsley and top with Parmesan, if desired.