Can I use ground beef instead of lamb?
Yes. Ground beef works well and is more budget-friendly; use the same amount and follow the recipe as written. Cottage Pie is the beef version of this dish.
How do I know when the mashed potato topping is done?
Bake until the top is golden brown and slightly crispy, about 15–20 minutes. You can also broil for 2–3 minutes at the end for extra color.
Can I make Shepherd's Pie ahead of time?
Yes. Assemble the pie (filling + potatoes) up to 24 hours ahead, cover, and refrigerate. Bake from cold, adding 5–10 minutes to the baking time.
What vegetables can I swap in?
Peas are traditional; you can add or substitute corn, green beans, or celery. Avoid watery vegetables like zucchini, which may make the filling soggy.
Do I need to peel the potatoes?
No, but peeling is traditional for a smoother mash. Leaving skins on adds texture and nutrients; mash well to break them down.