Shepherd’s Pie with Sweet Potato Mash

By AislePrompt Test Kitchen · 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 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 450 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: 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.

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 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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