Can I prepare this dish ahead of time?
Yes. Bake the potatoes, hollow them, and prepare the filling up to 1 day ahead. Assemble and bake just before serving, or refrigerate assembled potatoes and add 10–15 minutes to bake time.
What's the best way to get crispy potato skins?
Bake potatoes at 400°F for 50–60 minutes until tender. After hollowing, brush skins lightly with olive oil before filling and baking; this ensures they crisp rather than soften.
Can I use ground lamb instead of ground beef?
Yes. Ground lamb is traditional in shepherd's pie and works perfectly here. Use the same weight and cook it the same way; flavor will be slightly richer.
How do I keep the mashed potato topping from browning too much?
Tent the baking dish loosely with foil for the first 15 minutes, then uncover to brown the peaks. If tops brown too quickly, cover again until the filling heats through.
Can this recipe be scaled for a crowd?
Yes. Double or triple all ingredients. Use a baking sheet instead of a dish and arrange potatoes cut-side up. Increase final bake time by 5–10 minutes if baking in a single layer.