Shepherd's Pie

Bahan-bahan (12 porsi)

• 1 tablespoon olive oil
• 1.25 pounds ground beef
• 1 medium white onion, peeled and diced
• 8 ounces baby bella or white button mushrooms, finely diced
• 2 medium carrots, finely diced
• 2 stalks celery, finely diced
• 4 cloves garlic, peeled and minced
• 1/4 cup all-purpose flour
• 1/2 cup dry red wine (or you can sub in more beef stock instead)
• 2 cups beef stock (or vegetable or chicken stock)
• 2 tablespoons tomato paste
• 2 tablespoons Worcestershire sauce
• 2 bay leaves
• 2 sprigs each fresh rosemary and thyme (or whatever herbs you love)
• 1/2 cup frozen peas
• sea salt and freshly-cracked black pepper
• 1 batch mashed potatoes (see below)
• 2.5 pounds potatoes (either Russets, Yukon golds, or a mix of the two)
• 1/4 cup butter
• 1/2 cup whole milk, or more as needed
• 2 ounces cream cheese (or 1/2 cup plain Greek yogurt)
• sea salt and freshly-cracked black pepper