Tamzin Outhwaite’s Creamy Mushroom Stroganoff

Ingredients

• 350g tagliatelle
• 1 tbsp olive oil
• 1 small onion, chopped
• 75g button mushrooms
• 150g white closed cup mushrooms, sliced
• 150g large flat mushrooms, sliced
• 1 clove garlic, crushed
• 2 tsp ground paprika
• 3 tbsp dry sherry
• 1 tbsp tomato puree
• 2 tsp Dijon mustard
• squeeze of lemon juice
• 150ml half fat creme fraiche
• 2 tbsp chopped fresh flat parsley