Wales Lamb and Mint Shepherd’s Pie

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A hearty shepherd’s pie made with ground lamb, fresh mint, and creamy mashed potatoes for a Welsh-inspired comfort meal. This british-inspired lamb ready in about 65 minutes layers ground lamb, medium, diced onion, medium, diced carrots into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 480 calories and feeds 4, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 45 min Serves 4 British cuisine 480 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. Boil 2 large peeled and cubed potatoes in salted water for 15 minutes until tender. Drain and mash with 3 tbsp unsalted butter, 1/3 cup whole milk, salt, and pepper until creamy.
  2. Step 2: While potatoes cook, heat 1 tbsp olive oil in a large skillet over medium-high heat. Add 1 diced medium onion, 2 diced medium carrots, and 2 minced garlic cloves. Sauté for 5 minutes until softened.
  3. Step 3: Add 1 lb ground lamb to the skillet and cook for 7 minutes, breaking up meat, until browned.
  4. Step 4: Stir in 2 tbsp tomato paste and cook for 2 minutes. Pour in 1 cup beef broth and simmer for 10 minutes until sauce thickens.
  5. Step 5: Mix in 1/2 cup frozen peas and 2 tbsp chopped fresh mint leaves. Season with salt and black pepper to taste.
  6. Step 6: Transfer lamb mixture to a baking dish and spread evenly. Top with mashed potatoes and smooth the surface.
  7. Step 7: Bake in preheated oven for 20 minutes until the top is golden and edges bubbly. Let rest 5 minutes before serving.

Equipment for this recipe

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Frequently asked questions

How long does Wales Lamb and Mint Shepherd’s Pie take to make?

Total time is about 65 minutes (20 min prep + 45 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Wales Lamb and Mint Shepherd’s Pie?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Wales Lamb and Mint Shepherd’s Pie?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Wales Lamb and Mint Shepherd’s Pie for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Wales Lamb and Mint Shepherd’s Pie?

British lamb like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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