Prepare zucchini noodles and cook regular noodles. Set aside.
In a large skillet, over medium heat, add olive oil, onion slices, mushrooms, and any extra chopped zucchini ends that would not turn into pasta.
Saute for a few minutes until the onion starts to turn transparent in color. Turn your burner down to low. Sprinkle with flour & beef seasoning mix.
Add broth and milk. Stir until warm. Add sour cream OR Greek yogurt OR cream cheese right before you are ready to serve and stirring until melted and mixed in.
Plate raw zucchini and add noodles then top with mushroom broth mixture.