In a large saucepan, combine cauliflower, broth, water and garlic; bring to a boil. Simmer, uncovered, 12-15 minutes or until cauliflower is tender., Meanwhile, in a large skillet, cook sausage and mushrooms over medium heat 6-8 minutes or until sausage is no longer pink, breaking up sausage into crumbles. Remove with a slotted spoon; drain on paper towels., Add sausage and mushrooms to cauliflower mixture; return to a boil. Reduce heat; simmer, uncovered, 5 minutes. Stir in cream and pepper; heat through. Serve with bacon.