Shepherds Pie

Name: Shepherd’s Pie
Ingredients: 2 tbsp. olive oil; 1 1⁄2 lb. trimmed lamb shoulder, cut into 1/4″ cubes; 2 ribs celery, finely chopped; 2 cloves garlic, finely chopped; 1 large carrot, finely chopped; 1 large yellow onion, finely chopped; 2 tbsp. tomato paste; 1⁄2 cup red wine; 1⁄2 cup beef stock; 1 tbsp. Worcestershire sauce; 2 bay leaves; 1 (15-oz.) can whole peeled tomatoes in juice, crushed by hand; Kosher salt and freshly ground black pepper, to taste; 2 lb. russet potatoes, peeled; 1⁄2 cup heavy cream; 8 tbsp. unsalted butter