Low-carb, gluten-free, and full of veggies, this Zucchini Lasagna Recipe offers ALL the classic lasagna comfort with only 250 calories per serving!

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This recipe was originally published on August 12, 2020. It was updated on May 17, 2021.

No noodles? No problem. This Zucchini Lasagna has all the flavors and comfort-food flavor and experience of classic lasagna, but without any noodles (or gluten!). It's warm, cheesy, meaty, and hearty while being full of vegetables, low in carbs, and brimming with protein.

The recipe does take around an hour to make, but it'll be worth it to see your diners so happy (kids included!). You can make the lasagna ahead of time to save time at the dinner hour or to entertain at your dinner party. Either way, this is a healthier lasagna recipe that is sure to impress every time.

Zucchini fever has hit me hard this year -- anyone else in the same boat?!

Could it be that I'm still looking for ways to creatively entertain myself while spending more time at home? Or, that I've been the grateful recipient of so many friends generously off-loading their loot with me? Maybe I'm just down a rabbit hole again, too!

I also see that my most recent zucchini bread and air fryer zucchini recipes are taking off a bit faster than my typical recipes do.

And, of course, seeing that what I'm creating is resounding makes me that much more excited about creating other similar recipes for you!

And, so, one night-- as fate would have it -- a friend posted in Facebook about an amazing zucchini lasagna recipe she just made.

My eyebrows shot up, ears perked, and my mouth started watering. Zucchini is one of my favorite vegetables to incorporate into or serve alongside Italian dishes. How did I never hear or think of this before?!

But what's the sake of wallowing in regret when you can get cooking?! So, I immediately started experimenting with creating my own.

Working off my mom's lasagna recipe growing up, I sauteed up beef and onions, added in a bottled sauce, and doctored it up with a few of my favorite easy tricks (but, of course, you could always just use my easy homemade tomato sauce in its place, too).

Next, I got to work on my favorite layer in traditional lasagna: the ricotta layer. Luscious, creamy, fatty, and full of the salty parmesan flavor, it always shines alongside the sauce and meat.

In this recipe, however, I had a particular challenge to tackle -- expressing the water out of the zucchini so the lasagna didn't turn into a sloppy stew.

Whereas some recipes recommend salting vegetables to remove the liquid, I knew I wanted to saute them shortly as it would also help develop the vegetable's flavor and keep the zucchini from undercooking.

And what results is a surprisingly low-carb main dish, that tastes nothing like as healthy as it is. Neighbors, friends, and other taste-testers alike were shocked on how nutritious and lower-calorie the meal is.

Of course, this does nothing for my zucchini obsession. And I won't blame you if you're mad at me for re-stoking your's. But, I can't let you go in in life without knowing about this dish, as I lived so long in my life without.

So, at the end of the day, it's friends helping friends. And that, my friend, is nothing to regret. 😊

This recipe is...

• Cheesy
• Creamy
• Savory
• Meaty
• Hearty

Whether you're working with a fresh crop of late-summer zucchini, or grabbing some of the vegetable from your local store throughout the year, this Zucchini Lasagna satisfies almost any crowd with flavor, texture, and heartiness while being deceptively healthy!

This veggie lasagna is made for entertaining and will be warmly received at any get-together or dinner party.

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Recipe ingredients:

• Zucchini -- the fresher, the better, but you can always make this lasagna year-round, too. Look for zucchini that are dark green with delicate and smooth skin and feel somewhat dense for their size.
• Olive oil
• Salt
• Onion
• Ground beef
• Garlic powder or fresh garlic -- choose whatever is convenient to you
• Marinara sauce -- choose a bottle that has minimal added sugar as some brands can sneak it in
• Balsamic vinegar
• Frozen spinach
• Whole milk ricotta cheese -- part-skim also works, but doesn't add as much flavor as whole milk
• Large eggs
• Italian seasoning blend
• Grated parmesan cheese (or Parmigiano-Reggiano) -- go for the natural, refrigerated type (i.e., not the green bottle). Also, grated works much better than shredded or shaved.
• Part-skim shredded mozzarella -- use pre-shredded for convenience, or shred your own for a more beautiful lasagna browning

Ingredient substitutions

• Ground meat -- ground turkey (breast and thigh) or raw Italian chicken or turkey sausage can also be used in place of the ground meat.
• Spinach -- 5 ounces of diced fresh baby spinach can easily work in this recipe in place of the frozen spinach. Add it in during the last 2 minutes of the sauce's simmering time, however, so it doesn't get mushy.
• Ricotta cheese -- cottage cheese can be substituted in place of the ricotta cheese, but I highly recommend the ricotta over the cottage cheese. It has a more delicate flavor and texture.

How to make this zucchini lasagna...

1. Saute the zucchini slices.
2. Remove the zucchini from the pan and saute the ground meat, onions, and garlic.
3. Add the marinara sauce, spinach, and balsamic vinegar to the ground meat and simmer the sauce until thick.
4. Mix up the ricotta cheese, eggs, parmesan cheese, and seasonings and whisk until smooth.
5. Layer the lasagna ingredients in the baking pan in the following order: half of the sauce, half of the zucchini, half the ricotta, half the cheese, and repeat.
6. Bake the lasagna at 375 degrees Fahrenheit for 33-35 minutes, or until the zucchini is bubbling around the outside and the cheese is golden brown.

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Keto zucchini lasagna pro-tips:

1. Preheat your oven -- you want your oven nice and hot so the lasagna cooks evenly and melts the cheesy perfectly. The best way to ensure this is with a preheated oven.
2. Saute the zucchini to remove the excess moisture from it -- zucchini has a lot of extra moisture that we want to remove to keep the lasagna from getting watery. In this recipe, we will do this by sauteeing the zucchini before adding it to the lasagna. If you notice that your zucchini is releasing a lot of water while sauteing, saute the zucchini an extra minute or two, or until most of the excess water has evaporated.
3. Choose a good-quality marinara sauce -- the marinara sauce is a big part of this recipe's flavor profile, so choose as quality of a sauce as you can find and afford. I love Trader Joe's "Rustico" sauce and Thrive Market's organic pasta sauce.
4. Let the lasagna rest before slicing it -- resting the lasagna keeps the dish from being watery and falling apart as you scoop it.
5. Go for grass-fed ground meat, if budget permits -- I know grass-fed meat can be expensive, but it offers better flavor and has been shown to have more health benefits than traditional ground meat (source). Bonus: ground meat is typically the most affordable out of all the cuts of grass-fed beef. I can usually find it for around $5/pound here in Colorado.

Low carb lasagna FAQ's:

What other veggies can you use in this lasagna recipe?

So many types of thinly sliced vegetables can work in place of the zucchini. You can substitute any of the following, sauteing them before adding to the dish, as you would the zucchini:

• Eggplant
• Portobello mushrooms
• Sweet peppers (red, green, yellow, or orange)
• Yellow squash

And you can also use any combination of the above veggies.

Serving suggestions:

Serve this low-carb lasagna with any of your favorite Italian side dishes. Steer away from carb-rich side dishes to keep your meal low carb, or serve the lasagna with them to create a balanced meal:

• Garlic bread
• Angel hair pasta
• Blistered green beans
• A large green dinner salad
• Air Fryer Zucchini
• Creamy polenta

Drinks...

• Cabernet Sauvignon
• Pinot Noir
• Sangiovese

Dietary adaptations:

• Keto/Low-carb: this recipe is naturally keto and low carb, as it doesn't use any ingredients that are high in carbohydrates
• Gluten-free: this lasagna will be gluten-free as long as the marinara sauce you use doesn't have any gluten ingredients in it.

How to store zucchini lasagna:

• Refrigeration: leftovers last covered in the refrigerator for 4-5 days.
• Freezing: remaining lasagna can be frozen in a freezer-safe container for up to 3 months. For best results, freeze lasagna in 1 or 2 serving portions and thaw in the refrigerator for 24 hours before reheating.

How to reheat recipe leftovers:

• In the microwave: heat the lasagna up in a microwave-safe container or on a microwave-safe dish that's covered with a paper towel or splatter shield at 80% heat in 1-2 minute intervals or until the lasagna is heated through.
• In the oven: place the lasagna on an oven-safe pan or dish and cover it with aluminum foil. Heat the lasagna up in an oven preheated to 350 degrees Fahrenheit for 10-20 minutes, depending on the size of the portion you are reheating, or until the lasagna is heated through.

Tools needed to make this gluten-free lasagna:

• Cutting board
• Chef knife (this is my go-to knife, and it costs less than $30!)
• Measuring cups & spoons
• Large non-stick skillet
• Heat-safe spatula or turner
• Mixing bowl
• Whisk
• Cheese grater (optional)
• 9 x 13 baking pan

Other low-carb Italian recipes:

• Beef Ragu (Pressure Cooker/Instant Pot Recipe)
• Chicken Bolognese
• Pesto Spaghetti Squash Pasta
• Sundried Tomato Red Pesto
• Easy Homemade Pasta Sauce

Other zucchini recipes:

• Air Fryer Zucchini
• Sauteed Zucchini & Yellow Squash
• Gluten-free Zucchini Bread

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