Hearty Sausage Soup

Warm oil in a large, heavy saucepan over medium heat. Add sausage and cook, stirring occasionally, until browned on both sides, 5 to 7 minutes. Add cabbage and potatoes and cook, stirring occasionally, until cabbage starts to wilt, about 5 minutes.

Pour in chicken broth and tomatoes with juice, stir in crushed red pepper and season with salt and pepper. If necessary, add water until liquid rises just above sausage and vegetable mixture. Raise heat to high and bring to a boil. Reduce heat to medium and simmer, stirring once or twice, until potatoes and cabbage are tender and flavors have melded, 10 to 15 minutes. Serve hot.