Hearty, delicious, and full of flavor, this Whole30 Cottage Pie is a wholesome take on classic comfort food. Ground beef and vegetables simmer in a savory, aromatic gravy before being topped with fluffy mashed potatoes and baked until golden. This version is Whole30-compliant, dairy-free, and gluten-free, making it a satisfying option for a variety of diets.
What Is Cottage Pie?
Cottage pie is a traditional British dish made of a savory meat filling—typically ground beef—cooked with vegetables in a rich gravy, then topped with mashed potatoes and baked until the top is golden and slightly crisp. It’s a comforting, economical meal that originated as a way to repurpose leftover meat and vegetables into a nourishing dinner.
The filling is usually flavored with herbs, broth, Worcestershire or tomato paste, and often includes onions, carrots, and celery. The mashed potato topping provides a creamy contrast to the robust meat base. Once assembled and baked, the dish offers a warming, satisfying plate that’s ideal for cool evenings.
Cottage Pie vs. Shepherd’s Pie
The recipes are nearly identical; the main distinction is the protein. Cottage pie uses beef, while shepherd’s pie traditionally uses lamb. Both are easy, budget-friendly, and adaptable dishes that feed a crowd and make great leftovers.
What You Need for Cottage Pie
- Ground Beef: Lean ground beef (around 80/20 or a leaner blend) gives good flavor and texture.
- Vegetables: Onion, carrots, celery, and garlic form the aromatic base. Mushrooms and a cup of frozen peas add extra texture and depth.
- Tomato Paste: A couple tablespoons deepen the gravy’s flavor and color.
- Onion Powder: A spoonful boosts savory notes in the filling.
- Arrowroot Starch: Used as a gluten-free thickener instead of wheat flour.
- Broth: Chicken broth works well for the mashed potatoes; beef bone broth or beef broth is great for the meat filling.
- Potatoes: Yellow-fleshed potatoes yield creamy, flavorful mashed potatoes.
Tips and Tricks
For the best flavor, brown the beef well before cooking the aromatics. Browning develops a fond (the browned bits on the pan) that enriches the gravy.
Pro tip: Form the ground beef into loose balls before browning. This helps the meat brown evenly, allows steam to escape, and makes it easier to transfer and crumble once browned.
After browning, crumble the beef with a potato masher or wooden spoon, then return it to the pan to finish the filling.
Finish on the Grill
If you want a smoky, wood-fired touch, finish the pie on a pellet or wood-fired grill. The grill adds a distinctive aroma to the mashed potato top that’s hard to replicate in a conventional oven.
Make Ahead and Storage
You can assemble this cottage pie ahead of time and bake it when ready to serve. If freezing, assemble but bake only when you plan to serve it. For weekly meals, bake the pie, refrigerate, and reheat in the oven or toaster oven, adding a splash of broth to the filling if it looks dry.
Can I Use Frozen Vegetables?
Yes. Frozen carrots or a mix of peas and carrots are convenient and reduce prep time without sacrificing flavor.
Variations and Serving Suggestions
This cottage pie adapts easily to preferences and dietary needs:
- Different proteins: Use ground lamb, pork, turkey, chicken, bison, or game for varied flavor profiles.
- Filling additions: Mushrooms, zucchini, or other vegetables can be added or swapped depending on what you have on hand.
- Vegetarian or vegan: Replace meat with hearty vegetables like mushrooms, eggplant, or zucchini, and use vegetable broth for the mashed potatoes to keep it vegan.
- Richer mash: This recipe uses a dairy-free mashed potato, but you can make it more indulgent by adding butter or cream if your diet allows, or top with grated cheese for an extra flavor boost.
- Herbs and spices: Fresh thyme, rosemary, or smoked paprika can be added to the filling for more aromatic complexity.
- Sides: Serve with green beans, roasted vegetables, or a simple salad. A spoonful of extra gravy on top complements the dish nicely.
Easy and Delicious Cottage Pie – Whole30
Ingredients
- 2 pounds yellow-fleshed potatoes, peeled and cubed
- Kosher salt
- 2/3 cup chicken broth, plus more to taste
- Extra-virgin olive oil
- 2 pounds 80/20 or lean ground beef
- 2 medium carrots, peeled and diced
- 1 celery stalk, diced
- 1 medium yellow onion, diced
- 8 ounces cremini mushrooms, roughly chopped or quartered
- 4 cloves garlic, finely chopped
- 1 teaspoon arrowroot starch
- 2 tablespoons tomato paste
- 1 tablespoon onion powder
- 17 ounces beef bone broth (or substitute beef broth)
- 1 cup frozen peas
- Freshly cracked black pepper
- 1 tablespoon finely chopped fresh parsley, for garnish
Instructions
- Add the potatoes to a medium saucepan, cover with water, add 1 teaspoon salt, partially cover, and bring to a boil. Cook until fork-tender, then drain. Add the chicken broth, 2 tablespoons olive oil, and ½ teaspoon salt. Mash until smooth, adding more broth or oil if needed. Taste and adjust seasoning, then cover and keep warm.
- Preheat a Traeger or pellet grill to 450°F, or preheat the oven to 400°F.
- Heat a 12” oven-safe pan over medium-high heat and add 2 tablespoons olive oil. Pat the ground beef dry and form into large loose balls. Brown the meat in the pan, about 5 minutes per side, reserving roughly 2 tablespoons of rendered fat in the pan. Transfer the browned beef to a bowl and crumble with a masher or wooden spoon.
- Lower the heat to medium. Add the carrots, celery, and onion with a pinch of salt and cook until softened, about 5 minutes. Add mushrooms and cook until softened, about 7 minutes. Stir in garlic and cook until fragrant, about 1 minute.
- Add arrowroot starch and onion powder, cooking for 1 minute. Stir in tomato paste and cook another minute. Add the beef broth, scraping brown bits from the pan, then return the crumbled beef and add frozen peas. Season with black pepper. Simmer, stirring occasionally, until the liquid reduces by half, about 12 minutes. Adjust seasoning with salt and pepper to taste.
- Remove from heat, spoon the mashed potatoes over the filling, spread evenly, and drizzle 2 tablespoons olive oil on top. Transfer the pan to the grill or place on a rimmed baking sheet and bake in the oven until the mashed potatoes are golden and slightly crispy, 35–40 minutes. Garnish with chopped parsley and allow to rest 15 minutes before serving.