Cheesy Leeks and Mushrooms

This is my fave alternative to cauliflower cheese. It’s perfect with a roast dinner and is really easy to make, plus is bloody delicious. If anyone is bored with the usual accompaniments then this is a must to make. Serves: 6 Prep: 10 minutes Cooking time 50-60 minutes Ingredients 1 onion (red or white) finely…