Shepherd's Pie with Sweet Potato Mash

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A comforting shepherd's pie featuring rich ground beef and vegetables topped with a vibrant sweet potato mash for a colorful twist. This british-inspired beef ready in about 60 minutes pairs ground beef, olive oil, medium, diced yellow onion for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 520 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart.

Prep: 20 min Cook: 40 min Serves 4 British cuisine 520 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 of salted water (1/2 tsp salt) and bring to a boil. Cook for 15 minutes until tender, then drain.
  2. Step 2: While potatoes cook, heat 2 tbsp olive oil in a large skillet over medium-high heat. Add 1 diced medium yellow onion, 2 diced medium carrots, and 3 minced garlic cloves. Sauté for 5 minutes until softened and fragrant.
  3. Step 3: Add 1 lb ground beef to the skillet and cook for 6-7 minutes, breaking up meat with a spoon, until browned and no longer pink.
  4. Step 4: Stir in 2 tbsp tomato paste, 1 cup beef broth, 1 tbsp Worcestershire sauce, 3/4 cup frozen peas, 1 tsp chopped fresh thyme, 1/2 tsp salt, and 1/4 tsp black pepper. Simmer for 8 minutes until sauce thickens and coats the meat.
  5. Step 5: Mash the drained sweet potatoes with 3 tbsp butter, 1/4 cup milk, and remaining 1/2 tsp salt and 1/4 tsp black pepper until smooth and creamy.
  6. Step 6: Transfer the beef mixture to a 9x9-inch baking dish and spread evenly. Top with the sweet potato mash, smoothing with a spatula.
  7. Step 7: Bake in the preheated oven for 20 minutes until the top is lightly golden and the filling is bubbling. Let rest for 5 minutes before serving.

Frequently asked questions

How long does Shepherd's Pie with Sweet Potato Mash take to make?

Total time is about 60 minutes (20 min prep + 40 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Shepherd's Pie with Sweet Potato Mash?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep ground beef from drying out.

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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