Irish Shepherd's Pie
A comforting, classic casserole featuring savory minced lamb and rich vegetables under a golden blanket of buttery mashed potatoes.
Ingredients
- •1.5 lbs ground lamb (680g)
- •2 tablespoons olive oil (30ml)
- •1 medium yellow onion, finely diced
- •2 medium carrots, peeled and diced
- •2 stalks celery, diced
- •2 cloves garlic, minced
- •2 tablespoons all-purpose flour (15g)
- •2 tablespoons tomato paste (30g)
- •1 cup beef or lamb broth (240ml)
- •1/2 cup dry red wine (120ml)
- •1 teaspoon Worcestershire sauce
- •1 teaspoon fresh rosemary, finely chopped
- •1 teaspoon fresh thyme, finely chopped
- •1 cup frozen peas (150g)
- •2 lbs russet potatoes, peeled and quartered (900g)
- •4 tablespoons unsalted butter (60g)
- •1/3 cup heavy cream or whole milk (80ml)
- •2 large egg yolks (optional, for richer browning)
- •Salt and freshly ground black pepper to taste
Instructions
- 1
Place the peeled and quartered potatoes in a large pot of salted water, bring to a boil, and cook for 15-20 minutes until fork-tender.
- 2
While the potatoes cook, heat the olive oil in a large skillet or Dutch oven over medium-high heat.
- 3
Add the ground lamb and cook until browned, breaking it up with a wooden spoon as it cooks. Drain excess fat if necessary.
- 4
Add the diced onion, carrots, and celery to the lamb, cooking for about 6-8 minutes until the vegetables have softened.
- 5
Stir in the minced garlic, rosemary, and thyme, cooking for 1 minute until fragrant.
- 6
Sprinkle the flour and tomato paste over the meat mixture and stir well to cook out the raw flour taste for about 2 minutes.
- 7
Pour in the red wine, scraping up any browned bits from the bottom of the pan, and let it simmer until reduced by half.
- 8
Add the broth and Worcestershire sauce, bring to a simmer, and cook for 5-10 minutes until the sauce thickens into a rich gravy.
- 9
Stir in the frozen peas, season with salt and pepper to taste, and transfer the entire meat mixture into a 9x13-inch baking dish.
- 10
Preheat your oven to 400°F (200°C).
- 11
Drain the cooked potatoes thoroughly and mash them with the butter, warm cream, salt, and pepper until smooth.
- 12
Stir the egg yolks into the warm mashed potatoes quickly to prevent scrambling (this helps the crust brown beautifully).
- 13
Spread the mashed potatoes evenly over the lamb mixture, sealing the edges against the dish, and rough up the top with a fork to create crispy peaks.
- 14
Bake in the preheated oven for 25-30 minutes, or until the filling is bubbling around the edges and the potato peaks are golden brown.
- 15
Let the pie rest for 10-15 minutes before serving to allow the gravy to settle.
💡 Chef tips
- Make-ahead tip: You can assemble the entire pie up to 24 hours in advance, cover it, and keep it in the refrigerator until ready to bake; just add 10 extra minutes to the baking time.
- Substitution note: While traditional shepherd's pie uses lamb, you can easily substitute ground beef (in which case it is technically called a Cottage Pie) with equally delicious results.
- Storage: Leftovers can be stored covered in the refrigerator for up to 3 days and reheat wonderfully in the oven or microwave.
✅ How it should turn out
The finished dish emerges piping hot with a wonderfully crisp, golden-brown potato crust giving way to a rich, savory lamb and vegetable filling packed with aromatic herbs.