Keto Lasagna Recipe | Easy Zucchini Air Fryer Lasagna

If you're looking for an incredibly easy and delicious Keto Lasagna, this air fryer recipe is going to make your day. Not only is it better for you, but this is actually something you'll look forward to digging into!

Why You're Going To Love This Keto Lasagna

• Fast. This cooks up in under 30 minutes.
• Easy. Just slice the zucchini, make some layers, and pop it in your air fryer.
• Low Carb. Only 7 net carbs per serving.
• Easy Clean Up. A springform pan and a mixing bowl are the only two dishes you'll have to wash when you make this recipe.

Believe it or not, this is actually easier to make than regular lasagna. The zucchini "noodles" don't require pre-cooking and handle and layer so much easier than regular lasagna noodles.

On top of that, if you make this in the Air Fryer, it will cook much faster too. It's actually very hands-off, and that's my favorite way to cook (which is why I'm such a gadget geek, and why I make so many Instant Pot and Air Fryer recipes!)

How is This a Keto Lasagna?

Air fryer zucchini lasagna is an excellent keto lasagna recipe for several reasons, making it both satisfying and perfectly aligned with low-carb goals:

• Zucchini. As I'm sure you can tell from the pictures, this Keto Lasagna uses zucchini "noodles" instead of lasagna pasta. This cuts down on the carb a calorie content tremendously.
• High in Protein and Healthy Fats. The sausage, ricotta, mozzarella, and parmesan provide satiating fats and protein that fit naturally into a keto lifestyle.
• No-Sacrifice Comfort Food. You still get rich Italian flavors, creamy cheese layers, savory seasoned meat, and a bubbly top, just without the carbs from pasta or sugar-heavy sauces.
• Uses Low Sugar Marinara. This keeps net carbs in check while delivering classic tomato flavor.

Keto Resources you need:

• Grab one of the BEST Keto Snacks On Amazon for those cravings you just can't ignore.
• I've written two Keto cookbooks now that will take the guessing out of cooking while on Keto. Even non-Keto people love these recipes! Get Easy Keto in 30 Minutes and Keto Fat Bombs Sweets & Treats.
• I've put together a TON of my favorite Keto recipes into lists like Vegetarian, Soups, Holidays, Instant Pot, and more to make finding GOOD recipes easy for you.

Can You Eat Ricotta Cheese on Keto?

Yes! It's high in fat, and relatively low in carbs which is great for a Keto way of eating. It has a rich flavor and an excellent texture, so it fits really well in a Keto Lasagna like this one.

How Many Layers Should a Lasagna Have?

Well, that all depends on how big you want to make it. This Keto Lasagna recipe works best with about six layers. If you want to do more than that, or double the recipe, you will need to adjust cook times.

Ingredients You'll Need

• 1 cup Low Sugar Marinara Sauce- Adds classic Italian flavor, moisture, and acidity while keeping carbs low.
• 1 Zucchini- Serves as the keto-friendly “noodle” replacement, providing structure without pasta.
• 1 cup finely chopped yellow onion- Adds sweetness, aroma, and depth of flavor when cooked with the meat.
• 1 teaspoon Minced Garlic- Provides savory, aromatic flavor that enhances the overall Italian profile.
• 1/2 pound bulk hot or mild Italian sausage- The main protein source; adds rich, seasoned, meaty flavor.
• 1/2 cup ricotta cheese- Creates a creamy, smooth layer that mimics traditional lasagna’s texture.
• 1/2 cup shredded mozzarella cheese- Adds mild, melty cheesiness and helps bind the cheese mixture.
• 1/2 cup shredded parmesan cheese- Adds salty, nutty depth to the cheese mix, with some reserved for a golden, crispy topping.
• 1 Eggs- Binds the cheeses together so the layer sets firmly while cooking.
• 1/2 teaspoon Garlic- Adds extra garlicky flavor to the cheese mixture for richness.
• 1/2 teaspoon Italian Seasoning- A blend of herbs that infuses the dish with classic lasagna flavor.
• 1/2 teaspoon Ground Black Pepper- Adds mild heat and balances the richness of the cheese and sausage.

How To Make Zucchini Lasagna

1. Mandolin. Using a mandolin, slice the zucchini into long, thin slices.
2. Line. Spray a 7-inch spring-form pan with oil and arrange the zucchini in overlapping layers in the bottom of the pan.
3. Marinara. Place 1/4 cup of marinara sauce on top of the zucchini and spread evenly. 
4. Mix. In a large bowl, mix the onions, garlic, and Italian sausage. Layer the meat on top of the zucchini and spread evenly.
5. Spread. Pour the rest of the marinara sauce and spread it evenly.
6. Mix. Rinse the bowl you used earlier, and mix together the ricotta and mozzarella and 1/4 of a cup of the Parmesan cheese.
7. Layer. Spread the cheese mixture on top of the meat.
8. Parmesan. Top with the remaining 1/4 cup parmesan cheese.
9. Recap. To recap, the layers are: zucchini, sauce, meat, sauce, cheese mix, parmesan cheese. 
10. Cover. Cover the pan with foil or a silicone lid.
11. Air Fry. Set the air fryer to 350F and bake for 20 minutes. Then, remove the foil and cook for another 8-10 minutes at 350F until the top is browned and bubbling.
12. Cool. Allow the lasagna to rest for 10 minutes before unclasping the springform pan to serve. 

How To Make It In The Oven

1. Mandolin. Slice the zucchini into long, thin slices.
2. Line. Spray a 7-inch spring-form pan with oil and arrange the zucchini in overlapping layers in the bottom of the pan.
3. Marinara. Place marinara sauce on top of the zucchini and spread evenly. 
4. Mix. Mix the onions, garlic, and Italian sausage. Layer the meat on top of the zucchini and spread evenly.
5. Spread. Pour the rest of the marinara sauce and spread it evenly.
6. Mix. Mix together the ricotta and mozzarella and 1/4 of a cup of the Parmesan cheese.
7. Layer. Spread the cheese mixture on top of the meat.
8. Parmesan. Top with the remaining parmesan cheese.
9. Cover. Cover the pan with foil or a silicone lid.
10. Bake. Bake for 35 minutes. Remove the foil and cook for another 10-15 minutes.
11. Cool. Allow the lasagna to rest before unclasping the springform pan.

Tips and Tricks

Making keto lasagna in the air fryer is easy and delicious, but these tips will help you get the perfect texture, flavor, and structure every time.

• Foil. Don't skip the foil step, or your cheese won't be as bubbly and delicious.
• Fit. Make sure your spring-form pan fits in your Air Fryer (if that's what you're using) before you add all the ingredients.
• Cool. Make sure to wait 10 minutes after cooking to release it from the spring-form pan and slicing it, or your Keto Lasagna will fall apart.

Variations

If you want to change up flavors or accommodate different dietary needs, these keto-friendly lasagna variations offer plenty of tasty options.

• Chicken Lasagna- Swap the Italian sausage for ground chicken or shredded rotisserie chicken for a lighter, milder flavor.
• Beef Lasagna- Use ground beef instead of sausage and add a pinch of fennel, oregano, and chili flakes to mimic classic Italian sausage seasoning.
• Vegetarian Lasagna- Skip the meat and add layers of sautéed mushrooms, spinach, or roasted eggplant for a veggie-forward keto option.
• White Keto Lasagna- Replace marinara with alfredo sauce or a homemade garlic cream sauce for a rich, creamy twist.

What To Eat With Keto Lasagna

Keto lasagna is rich, cheesy, and satisfying on its own, but pairing it with the right low-carb sides can create a complete, well-balanced meal.

• Caesar Salad (without croutons)- Crisp romaine, parmesan, and a creamy low-carb dressing add freshness to balance the richness.
• Zoodles in Garlic Butter- Light, buttery spiralized zucchini makes a great noodle-inspired accompaniment.
• Air Fryer Brussels Sprouts- Crispy, caramelized sprouts add texture and keep the meal low-carb.
• Cauliflower Breadsticks- A keto-friendly take on garlic bread to scoop up extra sauce.

How Long Does It Last?

Keto zucchini lasagna typically lasts 3 to 4 days in the refrigerator when stored properly in an airtight container.

Because zucchini contains more moisture than traditional pasta, it’s best to let the lasagna cool completely before storing it to prevent excess condensation and sogginess.

The flavors actually deepen over time, making leftovers even more delicious.

Can You Freeze It?

If you want to store this main course longer, you can freeze keto zucchini lasagna for up to 2–3 months, but keep in mind that the zucchini may become softer after thawing.

Reheat leftovers in the air fryer or oven to restore some firmness and crispiness.

Our Best Zucchini Recipes

• Zucchini Soup
• Zucchini Pancakes
• Keto Instant Pot Lasagna
• Zucchini Noodles
• Zucchini Roll Ups

Whether you make this Keto Lasagna recipe for you, family, or guests, you're going to love how easy it is to make and how delicious it turns out! I hope you love it as much as we do.