Mushroom Stroganoff
550 g of mixed mushrooms, 1 red onion diced, 2 cloves crushed garlic, 425 ml vegetable stock, 1 tbsp tomato paste, 2 tbsp lemon juice, 1 tbsp cornflour, 2 tbsp cold water, 115 g plain yogurt of your choice, 3 tbsp chopped fresh parsley, freshly cracked pepper to taste.
Put...