Air Fryer Shepherd’s Pie

For the Meat Filling:

• 1 lb ground lamb (or beef)
• 1 small onion, finely chopped
• 2 cloves garlic, minced
• 1 cup frozen mixed vegetables (peas, carrots, corn)
• 2 tablespoons tomato paste
• 1 teaspoon Worcestershire sauce
• ½ teaspoon salt
• ½ teaspoon black pepper
• ½ teaspoon dried thyme
• ½ cup beef broth

For the Mashed Potato Topping:

• 2 large potatoes, peeled and cubed
• 2 tablespoons butter
• ¼ cup milk
• ½ teaspoon salt
• ¼ teaspoon black pepper