Baked mushrooms

Name: Baked mushrooms
Cook time: 45 min
Total time: 45 min
Cuisine: European, Mediterranean
Ingredients: 8 large flat mushrooms; a bunch of spring onions, trimmed and sliced; 1 clove of garlic, peeled and finely chopped; a few sprigs of fresh thyme, leaves picked; 250g Taleggio cheese, thinly sliced; 2 thick slices of bread, made into breadcrumbs; a small bunch of fresh flat-leaf parsley, chopped; 4 handfuls of rocket, washed and dried; juice of 1 lemon; extra virgin olive oil