Pre-heat skillet so it is hot when you start to add your ingredients. Spray youu skillet with non-stick cooking spray and Sauté onions and sliced Chicken sausage for 7 minutes. Both with start to taken on a beautiful golden brown color.
Add your heavy cream, diced tomatoes, tortellini and chicken stock directly into your skillet and mix together on high heat. Bring to boiling, reduce heat and cover. Simmer Tomato Basil Tortellini for 12 minutes. Tortellini will thicken up and sauce will thicken.
Stir in basil and Mozzarella cheese until the cheese is melted.
When the mozzarella cheese is melted, stir everything together and you are ready to serve.