Orzo with mushrooms

1 onion 2 cloves garlic 2 sprigs of thyme 200 gr mushrooms 3 tbsp olive oil 2 tbsp butter 250 gr medium-sized orzo pasta (Alphamega brand) 100 gr white wine 300 gr chicken broth 200 ml milk cream 1 tbsp parsley, finely chopped 50 gr Grana Padano grated Salt / Pepper