Cauliflower Sausage and Kale Soup

Name: Cauliflower Sausage and Kale Soup
Prep time: 10 min
Cook time: 35 min
Total time: 45 min
Cuisine: American
Ingredients: 1 Tbsp. olive oil; 12 oz. mild Italian sausage, removed from casing; 3 slices bacon, chopped; 1 medium onion, diced; 2 cloves garlic, minced; 6 cups cauliflower florets, about 1 1/4 pounds; 1 (32 oz.) carton chicken broth; 1 cup half and half; 4 cups chopped curly kale; Kosher salt and fresh black pepper; Red pepper flakes, for serving, optional