Our Favourite Cottage Pie Recipe

Name: Our Favourite Cottage Pie Recipe
Prep time: 20 min
Total time: 20 min
Cuisine: European, British
Ingredients: 400 g beef mince; 1 onion, finely chopped; 1 leek halved lengthways, and thinly sliced; 1 large carrot, finely diced; 1 celery stick, finely diced; 2 tbsp. tomato puree; 2 tbsp. plain flour; 200 mL red wine; 2 tbsp. Worcestershire sauce; 500 mL beef stock; Leaves from 4 thyme sprigs, chopped; 1.25kg floury potatoes (such as Maris Pipers), peeled and cut into 3cm chunks; 50 g butter; 2 tbsp. milk; 200 g frozen peas; 75 g mature Cheddar, grated