Name: Sweet Potato Shepherd's Pie
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Ingredients: 4 medium sweet potatoes (peeled and cubed); 2 tbsp unsweetened almond milk (or regular milk); 1 tbsp butter (or olive oil for dairy-free); Salt and pepper (to taste); 1 lb ground beef; 1 small yellow onion (diced); 2 garlic cloves (minced); 1 cup carrots (diced); 1 cup peas (frozen or canned); 2 tbsp tomato paste; ½ cup beef broth; 1 tsp dried thyme; 1 tsp dried rosemary; 1 tbsp Worcestershire sauce; Salt and pepper (to taste)

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This sweet potato shepherd’s pie combines a rich ground beef and vegetable filling with creamy, buttery mashed sweet potatoes for an easy, comforting casserole. It’s hearty enough to serve as a complete meal, loaded with carrots and peas, and perfect for meal prep or freezer-friendly family dinners.

A quick note on the name: traditional shepherd’s pie is technically made with lamb, while a beef version is called cottage pie. I’m using ground beef here because it’s what most of us actually have on hand, but feel free to swap in ground lamb if you want the true original.

Whether you’re serving Sweet Potato Shepherd’s Pie for a chilly weeknight or prepping it ahead for a cozy family meal, it’s the kind of recipe that warms you up from the inside out and makes great leftovers, too.

If you like this shepherd’s pie with sweet potatoes, you’ll love my sloppy Joe casserole, too!

Why You’ll Love This Recipe

Flavor: The sweet potato topping adds natural sweetness and a creamy texture that balances the savory beef filling.
Nutritious: With meat, carbs, and lots of veggies, this sweet potato shepherd’s pie is a full meal on its own.
Great for meal prep: The ingredients can be prepped ahead, and leftovers are great for freezing for an easy meal on busy weeknights.
Customizable: Mix and match whatever veggies are in your fridge or swap the protein to make the recipe your own.

Ingredients You’ll Need

Below are a few of my notes about the key ingredients. Please be sure to scroll down to the recipe card for the complete details!

Sweet Potatoes: The star of the topping. Peeled and cubed so they boil evenly and mash until smooth.
Ground Beef: Creates a rich, savory filling and is an accessible option for this cottage pie-style recipe. Ground lamb can be used for a traditional shepherd’s pie, while ground turkey or chicken creates a lighter variation.
Onion, Garlic, and Carrots: The aromatic base that builds flavor as the filling cooks down.
Peas: Adds a pop of color and sweetness; frozen or canned both work fine. Want more veggies? Add mushrooms, zucchini, green beans, or spinach, too!
Tomato Paste and Beef Broth: These build the rich, savory sauce that holds the filling together once it simmers.
Thyme, Rosemary, and Worcestershire Sauce: The herby, savory backbone that makes this taste like classic shepherd’s pie. Use a certified gluten-free Worcestershire sauce when needed. Tamari or coconut aminos can be substituted, although the flavor will be slightly different.
Butter and Milk (for the topping): Whisked into the mashed sweet potatoes for a creamy, spreadable topping. Sub the butter with ghee, olive oil, or vegan butter for dairy-free. Use almond milk if opting for a dairy-free recipe.

How to Make Sweet Potato Shepherd’s Pie

This recipe for sweet potato shepherd’s pie comes together just like a classic shepherd’s pie. Here’s an overview of the process:

Step 1: Boil and mash the sweet potatoes. This process is the same as making mashed sweet potatoes. Boil the cubed sweet potatoes until fork-tender. Then, drain them right away, and use a potato masher to combine them with milk, butter, salt, and pepper. Set aside.

Step 2: Brown the beef. In a large skillet, cook the ground beef over medium heat until browned, breaking it apart as it cooks, then drain any excess fat.

Step 3: Build the filling. Add the onion and garlic and cook until softened, then stir in the carrots. Add the tomato paste, beef broth, thyme, rosemary, and Worcestershire sauce, and let everything simmer so the sauce thickens. Stir in the peas at the end.

Step 4: Assemble. Spread the meat mixture in an even layer in a baking dish or casserole dish, then top with the mashed sweet potatoes, spreading all the way to the edges to seal in the filling. Use the back of a spoon to swirl the top into little peaks.

Step 5: Bake. Bake until the topping is set and lightly golden, then broil just until the top is lightly crisp and darkened in color. Be careful not to burn! Serve warm.

Tips for the Best Sweet Potato Shepherd’s Pie

Assemble ahead. Both the filling and the mashed topping can be made a day ahead and stored separately in the fridge. When you’re ready, just assemble and bake. This is a great one to prep on a Sunday for a busy weeknight!

Boil sweet potatoes just until tender. Don’t overcook the potatoes or they’ll absorb too much water. Once they’re fork-tender (about 10-12 minutes), drain them right away for a creamier mash.

Let the filling simmer to thicken. After adding the broth and tomato paste, simmer for 5-7 minutes to allow the mixture to reduce and concentrate in flavor. This helps the final dish hold together beautifully when served.

Drain the potatoes thoroughly. Let them sit in the colander for a minute or return them to the warm pot briefly so excess moisture can evaporate.

Mash while warm. Sweet potatoes become easier to mash smoothly before they cool.

Avoid too much milk. Add it gradually so the topping remains thick enough to spread and hold its shape.

Use a spoon to “swirl” the topping. After spreading the mashed sweet potatoes, use the back of a spoon to create little peaks. This helps them get golden and slightly crisp when baked or broiled.

Broil for a golden top. For that perfect finishing touch, broil for 2-3 minutes at the end until the sweet potato topping gets lightly browned and toasty.

Add garlic to the mash. A clove of roasted or sautéed garlic mashed right into the sweet potatoes adds a savory depth that plays really well against their natural sweetness.

How to Store, Freeze, and Reheat

Reheating: Warm in the oven at 350°F for 15-20 minutes, or microwave individual portions for 1-2 minutes.

Refrigerator: Store leftover sweet potato shepherd’s pie in an airtight container for up to 5 days.

Freezer: Freeze individual portions or the full dish (uncooked or cooked) for up to 3 months. Thaw in the fridge overnight before reheating.

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Sweet Potato Shepherd’s Pie