Boil the pasta according to the package instructions.
Grate the cheese and mix with the sour cream.
Add the spinach to a medium pan with the finely sliced (not crushed/ minced) garlic cloves and cook for 1 minute, then add the lid for another 2-3 minutes until the spinach is wilted.
Drain the pasta and mix with the spinach, the sour-cream cheese mix. Season with salt and pepper.
Serve while hot.