Slow-Cooker Tuscan Sausage Soup - Polidori Sausage

Ingredients

• 1 lb. Polidori Hot Italian Sausage (casings removed)
• 1 large Onion (chopped)
• 1 Celery stallk (chopped)
• 3/4 cup Heavy whipping cream
• 4 cloves Garlic (minced)
• 1 tsp Dried oregano
• 1/2 tsp Crushed red pepper flakes
• 1/2 tsp Black pepper
• 6 cups Low-sodium chicken broth
• 6 Russet potatoes (cut into 1/2" cubes)
• 1/2 lb. Baby bella mushrooms (sliced)
• 4 cups Kale (chopped)
• 1 tbsp Parmesan cheese (freshly grated)