This was very good. I did not taste the orange flavor at all so if you like that I would add more peels or even a splash of orange juice. A great meal to make and have leftovers. I made with mashed potatoes as my husband does not like polenta.
The mushroom onion sauce was outstanding but the pork was a bit bland. Next time I'll spear the loin with twigs of dried fennel sticks and/or insert cloves of garlic into slits cut into the pork. It's an easy recipe and worth experimenting with and cooking again. P.S. No spring onions in September so I use a package of frozen pearl onions. Worked great!!!