Shape sausage into 1-inch balls. Arrange sausage balls in a single layer in a 12-inch nonstick skillet. Cook over medium heat until brown on all sides. Remove sausage from skillet and drain. Remove any fat left in skillet.
Meanwhile, remove center stalks from kale; discard stalks. Coarsely chop kale (should have about 16 cups). Add kale and water to skillet; cook, covered, for 10 minutes or until kale is just tender, stirring occasionally. Add mushrooms, garlic, salt, pepper, and red pepper. Cook, uncovered, over medium heat for 5 minutes more. Add sausage, Vegetarian Cassoule beans, and vegetable broth; bring to a boil. Reduce heat and simmer, covered, for 15 minutes or until kale is very tender.