Classic Shepards Pie: My Easy Comfort Food Recipe

Ingredients

• 2 tablespoons olive oil (30 ml)
• 1 large onion, chopped (about 1 cup)
• 2 carrots, peeled and diced (about 1 cup)
• 2 celery stalks, diced (about 1 cup)
• 2 cloves garlic, minced
• 1 pound ground lamb (450g)
• 1 teaspoon dried thyme
• 1 teaspoon dried rosemary
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 2 tablespoons all-purpose flour (30g)
• 1 cup beef broth (240 ml)
• 1 cup frozen peas
• 1/2 cup frozen corn
• 2 tablespoons Worcestershire sauce
• 1 tablespoon tomato paste
• 2 1/2 pounds Yukon Gold potatoes, peeled and quartered (1.1kg)
• 1/2 cup milk (120 ml)
• 4 tablespoons unsalted butter (57g)
• Salt
• pepper
• 1/4 cup grated cheddar cheese (optional)