Melt the butter in a pan over medium-high heat, add the mushrooms and onion and cook until the mushrooms have released their liquids and the liquid has evaporated, about 10-15 minutes.
Mix in the garlic, thyme and flour and cook, stirring, until the flour starts to turn a light golden brown, about 2-3 minutes.
Add the wine and deglaze the pan.
Add the broth and tortellini, bring to a boil, reduce the heat and simmer until the tortellini is tender, about 10 minutes.
Add the parmesan, let it melt, add the spinach, let it wilt, add the cream, season with salt and pepper to taste and remove from heat.
Keyword main dish soup, pasta soup, sausage, mushroom and tortellini soup, soup, tortellini