Thin slices of sweet potato bake until fork-tender in this Sweet Potato Lasagna, a delightful blend of savory and subtly sweet flavors. It mirrors traditional lasagna in texture and layers, but swaps pasta for thinly sliced sweet potatoes for a lighter, gluten-free twist. The result is comfort food with a fresh spin — you won’t miss the noodles.
Ingredients to Have on Hand
If you enjoy hearty comfort dishes like No Ketchup Meatloaf, Butternut Squash Mac and Cheese, or Chicken Spaghetti, you’ll love this Sweet Potato Lasagna. It’s a satisfying, lower-carb alternative to traditional lasagna while keeping all the creamy, cheesy layers we crave.
- Sweet potatoes
- Elephant garlic (or a reduced amount of regular garlic)
- Ricotta cheese (whole-milk ricotta recommended)
- Parmesan cheese
- Mozzarella cheese
- Fresh basil
- Marinara sauce (store-bought is a great shortcut)
- Red pepper flakes
- Eggs
- Garlic powder
- Salt
Using a quality store-bought marinara saves time and still produces excellent results. Combine grated elephant garlic, fresh basil and three cheeses to build rich, layered flavors.
Elephant Garlic
Elephant garlic has a milder flavor than conventional garlic and works wonderfully in this recipe. For the lasagna, the garlic is peeled and finely grated, then baked into the layers for a gentle garlicky note rather than a sharp bite. Depending on bulb size, plan to use most of one bulb (about 4–6 cloves) to yield roughly 1/2 cup grated.
Store-Bought Marinara Sauce
You can make your own marinara if you prefer, but a good jarred sauce is an excellent time-saver. Choose a simple, high-quality marinara with minimal additives. It makes assembly easier and still gives bright tomato flavor without added water or fillers.
Pasta-Free Lasagna
This recipe eliminates the need to boil noodles—sweet potato slices replace lasagna sheets, which saves time and reduces carbs. Sweet potatoes are naturally gluten-free, making this dish a welcoming option for guests with gluten sensitivities while still delivering satisfying texture and richness.
Layer the Lasagna
Assembling this lasagna follows the same logic as a traditional version. After slicing the sweet potatoes thinly, layer sauce, sweet potato slices, grated elephant garlic, ricotta mixture, basil, and cheeses, repeating until the pan is full.
Cheesy Filling
For the ricotta filling, whole-milk ricotta adds creaminess and helps mellow the garlic. Mix ricotta with eggs, garlic powder, red pepper flakes, salt and a bit of grated Parmesan for a smooth, flavorful layer that holds the lasagna together.
Slice the Sweet Potatoes
Uniform, very thin slices are essential so the potatoes cook evenly. A mandoline, slicer, or similar tool is ideal, but a sharp knife works if you make each slice consistent — aim for the thickness of a coin. Thin slices help the layers bake through without ending up crunchy.
FAQs
Elephant garlic is milder than regular garlic. If you substitute with regular garlic, reduce the amount to a few teaspoons of finely chopped fresh garlic so the flavor doesn’t overpower the dish.
No, pre-cooking isn’t necessary. Thin, even slices will bake through during the lasagna’s cook time. If you slice them about the thickness of a quarter, they should be tender after baking.
Yes — if you prefer a meatier lasagna, add cooked Italian sausage or ground beef between layers before adding the cheese. The recipe is designed as a meatless dish, but it adapts well to added meat.
More Meatless Recipes
If you enjoy meatless comfort food, try additional recipes like Blue Cheese Vinaigrette, Cheesy Baked Ziti Casserole, Fresh Pesto, or a Tomato-Cream Sauce. These complement lasagna-style meals and share the same cozy, comforting appeal.
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Blue Cheese Vinaigrette
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Cheesy Baked Ziti Casserole
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Fresh Pesto
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Tomato-Cream Sauce
If you try this Sweet Potato Lasagna or any recipe on the site, please leave a star rating and share how it turned out in the comments below.
Recipe
The Best Sweet Potato Lasagna
Sweet Potato Lasagna balances savory and slightly sweet flavors with familiar lasagna textures. Serve with crusty bread or rolls for a complete, comforting meal.
Equipment
- 13″ x 9″ glass baking dish
Ingredients
- 3 pounds sweet potatoes (about 3, peeled and sliced very thin)
- 1 bulb elephant garlic (use 4–6 cloves, peeled and grated, about ½ cup packed)
- 2½ cups ricotta cheese (whole milk recommended)
- 2 eggs
- ¼ teaspoon red pepper flakes
- 2 teaspoons garlic powder
- 1 teaspoon salt
- ½ cup Parmesan cheese, shredded and divided
- ½ cup fresh basil leaves
- 2 cups mozzarella cheese, grated and divided
- 4 cups marinara sauce (homemade or your favorite jarred sauce)
Instructions
Prep Ingredients
- Preheat oven to 350°F (175°C). Grease a 13″ x 9″ glass baking dish.
- Grate the mozzarella and finely grate the Parmesan; set aside.
- Peel and slice the sweet potatoes very thinly (use a mandoline or slicer for uniform slices). Plan on about one sweet potato per layer.
- Peel and grate the elephant garlic to yield about ½ cup.
- In a bowl, blend ricotta with the two eggs, garlic powder, red pepper flakes, salt, and ¼ cup Parmesan. Set aside.
Assemble Lasagna Layers
- Spoon about ½ cup marinara into the bottom of the dish and spread to form a thin base layer.
- Arrange a single thin layer of sweet potato slices to cover the bottom, overlapping as needed. Sprinkle about one-third of the grated elephant garlic over the potatoes.
- Spread 1½ cups marinara over that layer to cover the potatoes and garlic.
- Add another layer of sweet potato slices, then another third of the grated elephant garlic.
- Spread the ricotta mixture evenly over the potatoes and garlic.
- Add a third layer of sweet potatoes and the remaining grated elephant garlic, then place fresh basil leaves evenly across the top.
- Pour the remaining marinara over the top and spread evenly. Sprinkle 1 cup of mozzarella on top.
Bake
- Cover the dish with foil and bake at 350°F for 50 minutes.
- Remove foil, add the remaining mozzarella and Parmesan, and return to the oven for an additional 30 minutes.
- Test for doneness by inserting a sharp knife into the center — it should glide through the tender sweet potatoes. If still firm, cover loosely and bake 10 more minutes as needed.
- Let the lasagna rest for 15 minutes before slicing and serving.
Notes
No need to precook the sweet potatoes—thin, consistent slices will bake through during the recipe’s cooking time. Serve with rolls or crusty bread for those who want extra carbs alongside this flavorful, meatless main dish.
Nutrition
Estimated per serving: Calories 437; Carbohydrates 45 g; Protein 23 g; Fat 19 g; Saturated Fat 12 g; Sodium 1322 mg; Fiber 7 g; Sugar 12 g. These are approximate values calculated from a food database.