This can be a hearty snack with two pieces of thick toast, or an interesting second course (between soup and main course) if you just have a single piece of toast. I had it at a London musical venue and have made it several times since. Really, it's a toasted sandwich, but you don't need a sandwich toaster.
1 or 2 slices of toast (my favourite currently is wholemeal spelt from my local bakery)
2 medium or one large mushroom - fresh tasty ones
cheese, distinctive tasting - stilton very good, but I've also used Brie
Slice the mushrooms into pickaxes and fry lightly in butter. When just about ready, toast the bread (you can rub the hot toast with garlic at this point if you want). While toast is still hot, cover one piece with a layer of cheese so that it begins to fuse with the hot toast. Pile on the piping hot mushrooms and clap the second piece of toast on top to melt the cheese some more. Serve with salad leaves.
If you serve it 'open', scatter fresh herbs (chives or parsley) over the mushrooms.
Serve with Good Red Wine.