Sweet Potato and Lentil Cottage Pie

This Sweet Potato and Lentil Cottage Pie is warm, hearty, and exactly the kind of dinner I want when I’m craving something cozy without making things too heavy. The base is packed with lentils, mushrooms, tomatoes, garlic, cumin, and paprika, while the topping is a creamy mash of sweet potatoes and carrots with almond milk and nutritional yeast. It’s colorful, filling, completely plant-based, and the kind of recipe that works just as well for a weeknight dinner as it does for meal prep.

Also try me Sweet Potato Cottage Pie recipe.

Why You’ll Love This Recipe

• Hearty and filling: Lentils, mushrooms, and sweet potatoes make this a satisfying main meal.
• Naturally plant-based: No meat or dairy is needed.
• Packed with vegetables: You get onion, garlic, mushrooms, tomatoes, sweet potatoes, and carrots in one dish.
• Comfort food without being too heavy: The sweet potato topping keeps things creamy and cozy.
• Great for meal prep: It stores and reheats really well.
• Simple ingredients: Most of what you need is easy to find and budget-friendly.
• Easy to customize: You can change the vegetables, spices, or topping depending on what you have.

Also try my Seitan and Vegetable Stew recipe.

What You’ll Need to Make It

For the Filling

• 1 tablespoon olive oil
• 1 onion, diced
• 3 garlic cloves, chopped
• Pinch of salt
• 7 ounces (200 g) chestnut mushrooms, sliced
• 1 teaspoon ground cumin
• 1 teaspoon sweet paprika
• 1 (14-ounce/400 g) can green lentils, drained
• 4 tablespoons tomato puree
• 8.4 fluid ounces (250 ml) vegetable broth
• 2 (14-ounce/400 g) cans chopped tomatoes

For the Topping

• 3 sweet potatoes, peeled and chopped
• 3 carrots, peeled and chopped
• 3 to 4 tablespoons almond milk
• 2 tablespoons nutritional yeast
• Salt, to taste
• Black pepper, to taste

What You’ll Need to Do

• Prep Time: 15 minutes
• Cook Time: 65 minutes
• Total Time: 80 minutes
• Serves: 4
• Course: Main Course

Start by warming the olive oil in a large pan over medium heat.

Add the diced onion, chopped garlic, and a pinch of salt. Cook everything gently for around 5 to 10 minutes, until the onion has softened.

Now add the sliced mushrooms, cumin, and paprika. Give everything a good stir and cook for another 10 minutes, until the mushrooms have softened and reduced.

Next, add the drained lentils, tomato puree, vegetable broth, and chopped tomatoes.

Stir everything together and let the filling simmer for around 30 to 40 minutes, or until most of the liquid has cooked away and you’ve got a thick, rich mixture.

While the filling is doing its thing, get started on the topping.

Bring a large pot of water to a boil and add the chopped sweet potatoes and carrots. Cook for 15 to 20 minutes, or until they’re completely tender.

Drain them well, then return them to the pot.

Add the almond milk, nutritional yeast, salt, and black pepper. Mash until smooth and creamy.

Now preheat the oven to 400°F (200°C).

Once the lentil filling is nice and thick, spoon it into a shallow 10-inch (25 cm) casserole dish.

Spread the sweet potato and carrot mash over the top, then smooth it out with the back of a spoon.

Place the dish in the oven and bake for 10 to 15 minutes, or until the top starts to turn lightly golden.

Serve warm and dig in.

Try my Sweet Potato and Tofu Hash recipe next.

Easy Ingredient Swaps

Chestnut mushrooms: Button mushrooms or cremini mushrooms work perfectly.

Green lentils: Brown lentils are an easy substitute.

Sweet potatoes: You can replace some or all of them with regular potatoes.

Carrots: Parsnips or butternut squash work well in the topping.

Almond milk: Oat milk, soy milk, or another unsweetened plant-based milk can be used.

Nutritional yeast: If you don’t have it, simply leave it out or use a little vegan Parmesan.

Vegetable broth: Water with a bouillon cube works just fine.

Sweet paprika: Smoked paprika gives the filling a deeper flavor.

Try my Arugula, Strawberry and Avocado Steak Salad recipe.

Some Twist and Tweak Ideas

Add peas: Stir frozen peas into the filling near the end of cooking.

Add more greens: Spinach or kale can be folded into the lentil mixture.

Make it smoky: Use smoked paprika instead of sweet paprika.

Add more herbs: Thyme or rosemary works beautifully in the filling.

Add a little heat: Try red pepper flakes or cayenne.

Make the topping extra creamy: Add a spoonful of vegan butter.

Add extra texture: Sprinkle breadcrumbs or crushed nuts over the top before baking.

Boost the protein: Stir in extra lentils or some crumbled tofu.

Try my Crispy Butter, Lemon and Parmesan Baked Scallops recipe.

Some Helpful Tips

Cook the filling until thick. If it’s too wet, the cottage pie can become runny once baked.

Drain the lentils well. Extra liquid can make the filling too loose.

Mash while hot. The sweet potatoes and carrots are much easier to mash when they’re still warm.

Add the milk gradually. Start with 3 tablespoons and add more only if needed.

Taste both layers separately. Season the filling and topping before assembling.

Use a shallow dish. This helps create a nice balance between filling and topping.

Some Budget-Friendly Tips

Lentils, carrots, onions, and canned tomatoes make this a naturally economical recipe.

You can use store-brand canned lentils and chopped tomatoes without sacrificing much flavor.

Regular button mushrooms are usually cheaper than chestnut mushrooms and work just as well.

If almond milk is something you wouldn’t normally buy, use any unsweetened plant-based milk you already have.

You can also stretch the topping with regular potatoes if sweet potatoes are expensive.

Some Serving Ideas

This cottage pie is filling enough to serve on its own, but it also works well with:

• Steamed green beans
• Roasted broccoli
• A simple green salad
• Peas
• Sauteed cabbage
• Roasted Brussels sprouts
• Garlic bread
• Warm crusty bread

A crisp green salad is especially nice because it balances the richness of the filling and mash.

Some Storage and Reheating Tips

Refrigerating: Let the cottage pie cool completely, then store it in an airtight container in the refrigerator for up to 4 days.

Reheating in the oven: Cover loosely and warm at 350°F (175°C) until heated through.

Microwave: Individual portions reheat well in short intervals.

Freezing: You can freeze the assembled and cooked cottage pie for up to 2 months.

For best results, thaw it overnight in the refrigerator before reheating.

If making it ahead, you can assemble the whole dish, refrigerate it, and bake it later the same day or the next day.

Final Thoughts

This Sweet Potato and Lentil Cottage Pie is a great example of simple ingredients coming together into something that feels much more substantial than the sum of its parts.

The lentil and mushroom filling is rich and savory, the sweet potato and carrot topping is soft and creamy, and the paprika and cumin add just enough warmth to keep every bite interesting.

It also happens to be one of those recipes that’s excellent for leftovers, so making a full dish today usually means tomorrow’s lunch is already handled.

Sweet Potato and Lentil Cottage Pie

This is my kind of comfort food! 🥘🍠 I layer a savory lentil, mushroom, and tomato filling under creamy mashed sweet potatoes and carrots for an easy, colorful dinner that always hits the spot.

Author: Danny Davis Courses: Dinner, Lunch Recipe Keys: Gluten Free M Meal Prep Vegan

Print Recipe

Pin Recipe

Prep Time 15 mins Cook Time 65 mins Total Time 1 hr 20 mins Difficulty: Intermediate Servings: 4 Estimated Cost: $ 10 Calories: 280

Ingredients

Servings

For filling layer:

• 1 tbsp olive oil
• 1 onion, diced
• 3 cloves garlic, chopped
• pinch of salt
• 7 oz chestnut mushrooms, sliced
• 1 tsp ground cumin
• 1 tsp sweet paprika
• 14 oz can green lentils, drained (400g)
• 4 tbsp tomato purée
• 8.4 fl oz vegetable broth (250ml)
• 14 oz 2 cans of chopped tomatoes (400g, 2 x 14 oz cans)

For the top layer:

• 3 sweet potatoes, peeled and chopped
• 3 carrots, peeled and chopped
• 4 tbsp almond milk (use regular milk in case not on vegan diet)
• 2 tbsp nutritional yeast
• salt and black pepper, to taste

Instructions

1. Heat the olive oil in a large skillet over medium heat.
2. Add the diced onion, chopped garlic, and a pinch of salt. Cook for 5 to 10 minutes, stirring occasionally, until softened.
3. Add the sliced mushrooms, ground cumin, and sweet paprika. Continue cooking for approximately 10 minutes, or until the mushrooms have softened and reduced in volume.
4. Stir in the drained green lentils, tomato puree, vegetable broth, and chopped tomatoes.
5. Bring the mixture to a gentle simmer and cook for 30 to 40 minutes, stirring occasionally, until most of the liquid has evaporated and the filling has thickened.
6. Meanwhile, bring a large pot of water to a boil. Add the chopped sweet potatoes and carrots.
7. Cook for 15 to 20 minutes, or until the vegetables are completely tender.
8. Drain the sweet potatoes and carrots thoroughly and return them to the pot.
9. Add the almond milk, nutritional yeast, salt, and black pepper. Mash until smooth and creamy.
10. Preheat the oven to 400°F (200°C).
11. Spoon the thickened lentil filling into a shallow 10-inch (25 cm) casserole dish.
12. Spread the sweet potato and carrot mash evenly over the filling and smooth the surface with the back of a spoon.
13. Bake for 10 to 15 minutes, or until the top is lightly golden.
14. Remove from the oven and allow to rest briefly before serving.
    

Nutrition Facts

Servings 4

---

Amount Per Serving

Calories 280kcal

% Daily Value *

Total Fat 4g7%

Total Carbohydrate 49g17%

Dietary Fiber 13g52%

Protein 13g26%

---

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.

Note

Estimated GI: ~48
Estimated GL per serving: ~22

Keywords: sweet potato lentil cottage pie, vegan cottage pie, lentil cottage pie, sweet potato cottage pie, vegan shepherds pie, lentil shepherds pie, plant based cottage pie, mushroom lentil cottage pie, sweet potato lentil pie, healthy cottage pie, vegan comfort food, easy vegan dinner, lentil dinner recipe, sweet potato dinner recipe, vegan casserole recipe, plant based casserole, mushroom lentil bake, lentil vegetable pie, sweet potato mash topping, vegan meal prep dinner, hearty vegan dinner, meatless cottage pie, dairy free cottage pie, lentil tomato filling, sweet potato casserole dinner