Tortellini Soup with Italian Sausage and Kale

Ingredients

• 1 tsp salt
• parmesan cheese
• 1 bunch kale, stems removed
• 1 bag tortellini, fresh
• ¼ tsp red pepper flakes
• 1 quart chicken stock
• 1 cup heavy cream
• 1 onion, minced
• 2 tbsp tomato paste
• 1 lb mild italian sausage, ground
• 6 garlic cloves, minced
• 1 crushed tomatoes