- Microwave Recipe -

Ingredients
600g (1 lb 5 oz ) firm white fish fillets10 ml (2tsp) lemon juice
Salt
Freshly ground black pepper
200g (7oz) button mushrooms, sliced
4 springs onions , chopped
30 ml (2tbsp) butter
30 ml (2tbsp) plain flour
125 ml (4 1/2 oz) low-fat plain youghurt