9-inch x 9-inch baking dish (if no cast-iron pan is available
heavy bottom pot (for boiling potatoes)
Ingredients
For the Topping
2lbsrusset potatoesabout 6 medium potatoes
3/4cupmilkmore or less for the desired creaminess of mashed potatoes
4tablespoonsbuttermore or less for the desired creaminess of mashed potatoes
salt and pepper, to taste
1largeegg, beaten
For the Filling
1mediumonion, finely chopped
2teaspoonsminced garlic
3mediumcarrotsdiced
1.5lbslean ground beef, preferred 93% lean
1.5cupsbeef stock
3tablespoonstomato paste
1.5teaspoonsbeef bouillon paste
1/4cupfrozen peas
1/2tspground black pepper, more or less to taste
salt, to taste
Instructions
Prepare the Mashed Potatoes: In a large saucepan, cover the potatoes in salted cold water, bring to the boil and simmer until tender. Drain well, then allow to steam-dry for a few mins. Mash well with the milk, butter, and cheese, then season with some salt and pepper.
Prepare the Filling: Preheat the oven to 425 degrees F (for step 3). Heat a 12-inch cast-iron skillet over medium-high heat. Add the onions, garlic, and carrots and saute about 5 mins. Add the lean ground beef and cook breaking up large pieces. Add the tomato paste, beef broth, beef bouillon, and fresh herbs. Bring to a simmer and cook, uncovered, for 15 mins. The gravy should be thick and coating the meat. Season to taste. Stir in the frozen peas and remove from the heat.
Add the Topping: Spoon on the mashed potatoes over the top of the beef filling making sure to cover the entire surface. lightly brush the surface of the potatoes with a beaten egg, then score lines with a fork making a pattern.
Bake: Bake for 15-20 minutes or until the topping is golden brown and the filling is hot and bubbly.
Notes
Traditional Shepherd’s Pie uses ground lamb. If using beef, the dish is technically called Cottage Pie.
Simmer the meat filling until thick before topping with potatoes. If the filling is too loose, the finished pie may be runny.
For clean layers, let the filling cool slightly before spreading mashed potatoes on top.
Fluff mashed potatoes well and avoid overmixing to prevent a dense or gluey topping.
Bake until the edges are bubbling and the top is lightly golden. Broil 1 to 2 minutes at the end for extra browning, watching closely.
Make Ahead: Assemble up to 24 hours in advance and refrigerate before baking.
Freezer Friendly: Freeze assembled and unbaked up to 3 months. Thaw overnight before baking for the best texture.
Storage: Refrigerate leftovers up to 4 days. Reheat in the oven for best texture.