This was great!
1 lb. linguine
1 lb. sliced cremini mushrooms
6 minced garlic cloves
1/2 c. Pecorino cheese, finely grated
2 T. chopped parsley
While the pasta is cooking, melt the butter and oil in a frying pan. Add the mushrooms, seasoning with salt and pepper. Saute until browned and tender. Add the garlic and sauté a bit longer.
When the pasta is done, add the cooked pasta to the mushrooms. Add 3/4 c. of the pasta water too and the cheese. Cook until the water has evaporated. Add the parsley and serve.