Shepherd’s Pie with Sweet Potato Mash

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

A comforting baked shepherd’s pie featuring savory ground beef and vegetables topped with a smooth, naturally sweet mashed sweet potato crust. This british-inspired beef ready in about 65 minutes layers ground beef, olive oil, medium, diced yellow onion 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 450 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 450 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. Place 2 large peeled and cubed sweet potatoes in a large pot, cover with water, and bring to a boil. Cook for 15-20 minutes until tender when pierced with a fork. Drain thoroughly.
  2. Step 2: While potatoes cook, heat 2 tbsp olive oil in a large skillet over medium-high heat. Add 1 medium diced yellow onion and 2 diced carrots, sauté for 5 minutes until softened and fragrant.
  3. Step 3: Add 1 lb ground beef to the skillet, breaking it up with a spoon. Cook for 7-8 minutes until browned and no longer pink.
  4. Step 4: Stir in 2 tbsp tomato paste, 1 cup beef broth, 1 tbsp Worcestershire sauce, 1 cup frozen peas, 1 tsp salt, and 1/2 tsp black pepper. Simmer for 8 minutes until the mixture thickens slightly.
  5. Step 5: Mash the cooked sweet potatoes with 3 tbsp butter, 1/4 cup milk, and 1/2 tsp garlic powder until smooth and creamy.
  6. Step 6: Spread the beef and vegetable mixture evenly in a 9x9 inch baking dish. Dollop and spread the sweet potato mash over the top, smoothing with a spatula.
  7. Step 7: Bake uncovered for 20 minutes until the edges bubble and the topping begins to brown. Let rest 5 minutes before serving.

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Frequently asked questions

How long does Shepherd’s Pie with Sweet Potato Mash 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 Shepherd’s Pie with Sweet Potato Mash?

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 Shepherd’s Pie with Sweet Potato Mash?

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 Shepherd’s Pie with Sweet Potato Mash 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 Shepherd’s Pie with Sweet Potato Mash?

British beef 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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