Creamy Sausage Tortellini Soup

Heat a large pot or dutch oven over medium heat on the stovetop with the olive oil. Add the Italian sausage and cook, while breaking it up, until browned, approximately 5 minutes.
Add minced garlic, sundried tomatoes, Italian seasoning and red pepper flakes and cook, while stirring for 2 minutes.
Sprinkle the flour over the top of the sausage and spices and cook, while stirring, until the flour is absorbed.
Slowly add in vegetable broth while stirring, scraping the bottom of the pot to remove any stuck on bits.
Increase the heat to medium high and bring the liquid to a boil, then add in tortellini and cook for 5 minutes, or until the tortellini floats to the top.
Stir in the milk and return the soup to a boil over medium heat, cooking for 5-10 minutes until slightly thickened.
Remove the soup off of the heat and stir in the fresh spinach. Season with salt and pepper as desired.