30 Minute Shepherd's Pie

Ingredients

• 900g potatoes, such as russet, peeled and cubed
• 2 tablespoons sour cream or softened cream cheese
• 1 large egg yolk
• 120ml cream, for a lighter version substitute vegetable or chicken broth
• Salt and freshly ground black pepper
• 1 tablespoon extra-virgin olive oil
• 800g lamb mince
• 1 carrot, peeled and chopped
• 1 onion, chopped
• 2 tablespoons butter
• 2 tablespoons plain flour
• 240ml beef stock or broth
• 2 teaspoons Worcestershire sauce
• 70g frozen peas, a couple of handfuls
• 1 teaspoon sweet paprika
• 2 tablespoons chopped fresh parsley leaves