Gluten-Free Lamb and Sweet Potato Cottage Pie
A hearty twist on traditional cottage pie featuring seasoned ground lamb layered between thinly sliced sweet potatoes instead of mashed potatoes. The filling combines aromatic spices like cumin, cinnamon, and chili powder with fresh vegetables and oregano for a warming, satisfying meal. Perfect for family dinners or meal prep, this comforting dish offers natural sweetness from the sweet potatoes that pairs beautifully with the savory spiced lamb. The Dutch oven method creates tender layers that meld together during the hour-long bake.
Ingredients
- 1 ½ pounds ground lambground beef1:1
Similar flavor profile
- 2 large sweet potatoes, peeled and thinly sliced
- 2 medium sticks celery
- 2 medium carrots
- 1 medium onion
- 3 medium garlic cloves, minced
- 14 oz canned tomatoes
- 2 tbsp fresh oregano, chopped
- 1 tsp chili powder
- 1 tsp ground cinnamon
- 2 tsp ground cumin
- 1 tbsp extra-virgin olive oil
- sea salt, to taste(optional)
- freshly ground black pepper, to taste(optional)
Instructions
- 1
Preheat oven to 350°F
- 2
Cut celery, carrots, and onion into slices and tomatoes into chunks
- 3
Mix all vegetables and garlic except sweet potatoes with ground lamb in a large bowl
- 4
Add chili powder, cinnamon, cumin, oregano, salt and pepper to lamb mixture and combine well
- 5
Pour olive oil into oven-ready Dutch oven
- 6
Layer half of sweet potatoes on bottom of pot
- 7
Place lamb mixture on top of sweet potatoes
- 8
Top with remaining sweet potatoes in a layer
- 9
Bake uncovered for 1 hour
Tips
Slice sweet potatoes evenly and thinly for consistent cooking and easier serving portions.
Let the cottage pie rest for 10 minutes after baking to help layers set before serving.
Good to Know
Refrigerate covered for up to 3 days. Reheat in 350°F oven until heated through.
Can be assembled up to 1 day ahead and refrigerated before baking. Add 10-15 minutes to cooking time if baking from cold.
Serve hot directly from the Dutch oven with a simple green salad or steamed vegetables.
Common Mistakes
Slice sweet potatoes uniformly to avoid uneven cooking and burnt edges.
Don't skip resting time after baking to prevent layers from falling apart when serving.
Substitutions
FAQ
Can I make this ahead of time?
Yes, assemble completely and refrigerate up to 24 hours before baking. Add 10-15 extra minutes to cooking time if baking from cold.
What if I don't have a Dutch oven?
Use any oven-safe casserole dish or baking dish. Just ensure it's deep enough for the layers and lightly grease before adding ingredients.
How long will leftovers keep?
Store covered in refrigerator for up to 3 days. Reheat individual portions in microwave or whole dish in 350°F oven until heated through.