Pasta with Spinach-Mushroom Sauce

• 1 pound pasta
• 1 pound bag frozen spinach
• 1 can mushroom soup
• 1 can sliced mushrooms
• 1 tablespoon basil
• 2 cloves garlic
• 1/2 cup milk
• 2 tablespoons flour
• water
  

in a large pot, add 2 liters water. add mushroom soup, mushrooms, spinach, garlic and basil and allow to cook until boiling. turn down to a simmer and add milk and flour. whisk thoroughly to thicken.
in a separate pot, boil salted water and cook pasta according to instructions on package. drain.
serve pasta on a plate with sauce.
sprinkle with parmesan cheese if desired.