Vegetarian Sweet Potato Lasagna

4.50 from 4 votes
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Amp up classic lasagna and pack it full of veggies for a hearty yet healthy dinner recipe that’s perfect for any vegetarian dinner! You’re going to love this sweet potato lasagna.

slice of sweet potato lasagna on a plate
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Time to Grab Your Casserole Dish!

Can I just say that the casserole dish is seriously one of the best inventions EVER. It’s just so. perfect. According to Wikipedia, casseroles are a “quintessential dish” in Minnesota. Yah know what; I would have to agree with that statement. I’ve got at least one casserole cooking up each week in my household.

I know what you’re thinking….lasagna isn’t a casserole. I’m here to tell you something different:

IT IS A CASSEROLE.

The internet tells me that a casserole is a deep dish meal slow cooked in the oven. It can, but doesn’t have to contain meat. Therefore…lasagna = casserole.

sweet potato lasagna on a serving spoon

This isn’t your average lasagna recipe. Why? It’s packed with veggies (4 different kinds!). I amped up the tomato sauce (1) with some onion (2) and sautéed spinach (3) AND added pureed sweet potato (4) to the cheese mixture. Talk about an amazing combo of flavors. You won’t even miss the ground beef or meat sauce traditionally found in lasagna recipes.

Sweet Potato Lasagna Spices

Speaking of flavors, you’re going to love the simple yet amazing spices we’re using to flavor this lasagna! I decided to keep things basic, but classic Italian when it came to the sauce. You really can’t go wrong with a little:

  • oregano
  • garlic powder
  • salt
  • black pepper

I lightened up the cheese by doing one part whole milk ricotta, one part low-fat cottage cheese, one part sweet potato puree.

Pro Tip: You can find pureed sweet potato at most grocery stores! Just make sure that you look for 100% sweet potato with no added sugar. If you can’t find it…feel free to roast/boil your own and then blend in the food processor. We have step by step instructions for pureeing sweet potatoes here ๐Ÿ™‚ Either method works!

cheese and sweet potato mixture for sweet potato lasagna filling

Sweet Potato Lasagna Layers

In general lasagna is pretty simple to put together. The layers look like this:

  • noodles
  • ricotta mixture
  • sauce mixture
  • REPEAT

You’re more than welcome to use your favorite lasagna noodles, original or whole grain. I really prefer original because I crave that white flour, glutenous texture…but that’s just me!

Since everything is pre-cooked and there’s no meat involved, all you have to do once everything is layered is pop it in the oven for about 30 minutes. Then it’s time to DIG IN.

sauce being spread on lasagna noodles for sweet potato lasagna

Storage Instructions

After the sweet potato lasagna is baked, let it cool completely before placing it in an airtight container. Store it in the refrigerator for up to 5 days.

To reheat the lasagna, let it come to room temperature and then heat it up in the oven at 350ºF until the cheese melts and the middle of the lasagna is warm.

Freeze this recipe

Let the sweet potato lasagna cool completely before covering the with plastic wrap and then aluminum foil. Place the lasagna in the freezer and freeze for up to 3 months.

To reheat the lasagna from frozen, let it come to room temperature and then heat it up in the oven at 350ºF until the cheese melts and the middle of the lasagna is warm.

4.50 from 4 votes

Sweet Potato Lasagna Recipe

Amp up classic lasagna and pack it full of veggies with this sweet potato lasagna. The whole family will love this meatless meal!
Prep: 15 minutes
Cook: 35 minutes
Total: 50 minutes
Servings: 8
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Ingredients 

For the Sweet Potato Cheese

  • 1.5 cups whole milk ricotta
  • 1.5 cups low-fat cottage cheese
  • 1 15 oz can sweet potato puree, ~1.5 cups
  • 1 tablespoon fresh rosemary, chopped

For the Sauce

Other

Instructions 

  • First, preheat oven to 375ºF and spray a baking dish or cake pan with nonstick cooking spray.
  • Prep 12 lasagna noodles by following the directions on the box. Set aside.
  • Prep sweet potato cheese by mixing together whole milk ricotta, cottage cheese, sweet potato puree, and rosemary. Set aside.
  • To prep sauce, heat oil in a large skillet over medium heat. Then, add in onion and sauté for about 5 minutes or until almost translucent. Add spinach and sauté for an additional 2ish minutes until it has cooked down. Add marinara sauce and spice and let simmer for 2-3 more minutes on low.
  • Prepare lasagna dish by layering noodles, cheese, and sauce. You should end with a layer of noodles on the top.
  • Bake at 375ºF for 25 minutes Then, sprinkle on mozzarella cheese and bake for an additional 5-10 minutes.

Nutrition

Calories: 393 kcal, Carbohydrates: 44 g, Protein: 19 g, Fat: 16 g, Fiber: 4 g, Sugar: 13 g

Nutrition information is automatically calculated, so should only be used as an approximation.

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About Lee Funke

Lee is the founder of Fit Foodie Finds and based in Minneapolis, MN. She started this website in 2010 as a way to share her love for real food and wellness. The internet has changed so much since then and so has Fit Foodie Finds. Today we're a female-run recipe website publishing hundreds of tried and true recipes developed and tested by our team.

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Lauren Gaskill | Making Life Sweet
February 10, 2016 7:08 pm

That second photo of the sweet potato cheese mixture made me stop dead in my tracks! I can’t stop staring. So delish, Lee!

Dani @ Dani California Cooks
February 9, 2016 1:31 pm

Yum! This is so creative! I can’t get enough sweet potatoes in my life…

Kelly @ Eat the Gains
February 9, 2016 8:19 am

Cottage cheese mixed with the cheese?! You are a genius! Great way to add some protein in there. I gotta try doing that!

Victoria
February 9, 2016 5:45 am

All my favorite foods in one dish, cannot wait to try this!

Chrissa - Physical Kitchness
February 8, 2016 10:33 pm

Sweet potato puree?! I mean, I always knew you were kind of a smarty pants but this is damn right brilliant! A ‘lil cheesy, a ”lil sweet. BOOMTOWN for the casserole win!

Kelly | Eat Yourself Skinny
February 8, 2016 12:24 pm

These look insanely delicious! Just pinned to make this weekend ๐Ÿ™‚

Kelsey Preciado
February 8, 2016 10:02 am

OH YUM!!! I swear you could add sweet potato to anything and it will make it 10x better. Love love!

Nate
February 8, 2016 9:44 am

Looks great! And awesome job on the photos. ๐Ÿ˜‰

Mallory (Not Quite a Housewife)
February 8, 2016 9:39 am
Recipe Rating :
     

5 stars
CANNED sweet potato!? Thank youuuu! Cutting sweet potatoes is terrifying. I almost always nearly lose a finger (ok I’m exaggerating) ๐Ÿ™‚ What do you think about adding an lb of ground turkey? We’re meat lovers in our household!

Kate | HappyForks.com
April 12, 2016 6:08 am
Reply to  Lee Funke

I learned easy way to make sweet potato puree without severe injuries. Cook unpeeled (carefully washed) sweet potatoes cut in halves width-wise. Be patient and cook them until absolute softness. Then, using a spoon, pick the ‘pulp’ out of the skin and mash it with a fork to puree. Super easy! When cooking sweet potatoes try to avoid checking too often with a fork if they are ready, as they will get disintegrated.

Kate | HappyForks.com
April 13, 2016 8:31 am
Reply to  Lee Funke

Way cheaper I bet. Give it a try!

Megan @ Skinny Fitalicious
February 8, 2016 9:13 am

This looks amazing! I want it for breakfast hehe!!!