1. In nonstick Dutch oven cook onion, carrot and garlic in oil over medium heat until onion is tender, stirring frequently. Stir in fennel seeds. Cook and stir about 1 minute more or until fennel is fragrant.
2. Stir in beans, broth, undrained tomatoes, oregano and red pepper. Bring to boiling. add frozen MORNINGSTAR FARMS HOT & SPICY VEGGIE SAUSAGE PATTIES, pushing patties down into soup. Return to boiling. Reduce heat. Simmer, covered, for 5 minutes. Uncover. With spoon break up sausage patties. Simmer, uncovered, for 5 minutes more.
3. Ladle into serving bowls. Sprinkle roma tomatoes (if desired) on each serving. Spoon dollop of yogurt (if desired) on each.