Cook the spaghetti. Slice the mushrooms. Heat a little oil or butter in a pan and fry the mushrooms until slightly shrunken. Scoop them out of the pan.
Chop the onion and garlic and brown in the same pan. Add the spinach and let it shrink. Add the creme fraiche. Season the creamy sauce with salt and pepper.
Spoon the spaghetti through the sauce. Finally, add the fried mushrooms and heat through. Serve the pasta with some Parmesan cheese and pine nuts.
Tip: add a little truffle tapenade or truffle oil at the end.
*Thanks to leukerecepten.nl for inspiration