Low-Carb Zucchini Lasagna (Grain-Free with Dairy-Free and Egg-Free Options)

This low-carb zucchini lasagna is a healthy, satisfying twist on classic lasagna—made with zucchini noodles instead of pasta.

It’s naturally grain-free, gluten-free, and can easily be made dairy-free and egg-free, making it perfect for a wide range of special diets.

Grain-free Lasagna

Italian food is my favorite type of food–I'm not gonna lie. Lasagna is my second favorite Italian food (right behind spaghetti!).

Lasagna is also one of those foods that people don’t really want to make because:

1) it takes a million hours to make and

2) it’s loaded with carbs which many are trying to avoid these days, especially the refined carbs that make up most pasta noodles

Well, there are two great things about this grain-free lasagna recipe.

1) it doesn’t take a long time (I’ll share our secret with you) and

2) we swap out the carb-heavy noodles with healthy zucchini!

Okay here’s the time-saving secret… ready?! Make a big batch of easy marinara sauce beforehand and you'll cut your prep time significantly!

We make marinara sauce (and salsa) by the gallon and put it in the freezer or can it. We use it for spaghetti sauce, dipping sauce for mozzarella sticks, and even pizza sauce.

All you have to do is take out your pre-made marinara sauce, chop up and fry your zucchini, layer it together, and throw it in the oven. Tah dah!!

I hope you enjoy this grain-free lasagna as much as we do!

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Recipe Notes and Variations

• For Egg-Free option – Use 3 teaspoons Powdered Egg Replacer mixed with 4 tablespoons water, OR 2 tablespoons organic ground flaxseed mixed with 4 tablespoons warm water.
• For Dairy-Free option – I am going to be working on some cheese you could use, but in the meantime, try this Vegan Mozzarella (from coconut and suitable for low carb), this one (from cashews – cashews have a higher carb count so be careful with this if you are on a low-carb diet), or this one from dairy-free yogurt (not suitable for very low-carb diets).
• Homemade Chili Powder Option: My “Best” Basic Chili Powder is a great make-your-own option for chili powder.
• Sweetener Alternatives: You could use xylitol, organic sucanat, or 1 scoop stevia for low carb – see How to Use Stevia.
• Left Over Marinara: The Marinara Sauce in this recipe makes about 6-7 cups, but you only need 3 for the lasagna – save the rest for spaghetti!
• THM Details: This is an “S” for those on the Trim Healthy Mama plan.
• Keto / Low-carb: This recipe as is both a keto lasagna and a low-carb lasagna.

More Grain-Free Pasta Dishes

Here are some more grain-free pasta dishes you might like!

• Zucchini Noodles with Cherry Tomatoes
• Eggplant Noodles with Vegetables (Primavera Style)
• Spaghetti Squash Salad – even my squash-hating friend loved this!

Grain-Free Lasagna {Zucchini Lasagna} – low carb with dairy-free option

This Zucchini Lasagna is the perfect recipe for lasagna lovers who want to eat lower carb or avoid grains. With this grain-free lasagna, there's even a dairy-free option. You won't miss the pasta on this one!

Print Pin Rate

Prep Time: 1 hour hour 40 minutes minutes

Cook Time: 30 minutes minutes

Total Time: 2 hours hours 10 minutes minutes

Servings: 8

Calories: 199kcal

Ingredients

Marinara Sauce

• 1/2 bell pepper
• 6 cups tomatoes (preferably fresh)
• 2/3 onion
• 1/2 celery stalk
• 1 clove garlic
• 1 teaspoon chili powder
• 2 tablespoons apple cider vinegar
• 2 tablespoons raw honey
• 1 tablespoon salt
• 1/3 teaspoon oregano
• 1/2 teaspoon basil

Everything Else

• 3 zucchini (sliced thinly lengthwise)
• 2-3 pasture-raised eggs (see Recipe Notes for egg-free option)
• 3-4 cups raw mozzarella cheese (grated; about 1 pound; see Recipe Notes for dairy-free options)
• coconut oil (for frying)

Instructions

• Blend together the ingredients for the marinara sauce, and boil together for at least 1 hour. The longer you boil, the thicker it gets.
• Preheat oven to 350 degrees.
• Whip up the eggs in a shallow bowl.
• Fry the zucchini by dredging in egg (or the substitute) and then frying in oil, turning once. It's ready when golden brown.
• Assemble your lasagna. First, spread about 1 cup marinara, followed by 1/3 of the zucchini, and then about 1 cup of cheese. Repeat until you have 3 full layers – we usually put an extra cup or so of cheese on top.
• Bake for about 30 minutes, until the top is slightly brown.

Notes

• For Egg-Free option – Use 3 teaspoons Powdered Egg Replacer mixed with 4 tablespoons water; OR 2 tablespoons organic ground flaxseed mixed with 4 tablespoons warm water.
• For Dairy-Free option – I am going to be working on some cheese you could use, but in the meantime, try this Vegan Mozzarella (from coconut and suitable for low carb), this one (from cashews – cashews have a higher carb count so be careful with this if you are on a low-carb diet), or this one from dairy-free yogurt (not suitable for very low-carb diets).
• Homemade Chili Powder Option: My “Best” Basic Chili Powder is a great make-your-own option for chili powder.
• Sweetener Alternatives: You could use xylitol, organic sucanat, or 1 scoop stevia for low carb – see How to Use Stevia.
• Left Over Marinara: The Marinara Sauce in this recipe makes about 6-7 cups, but you only need 3 for the lasagna – save the rest for spaghetti!
• THM Details: This is an “S” for those on the Trim Healthy Mama plan.
• Keto / Low-carb: This recipe as is both a keto lasagna and a low-carb lasagna.

Nutrition

Calories: 199kcal | Carbohydrates: 14g | Protein: 13g | Fat: 11g | Saturated Fat: 6g | Cholesterol: 74mg | Sodium: 1169mg | Potassium: 539mg | Fiber: 3g | Sugar: 10g | Vitamin A: 1755IU | Vitamin C: 38.8mg | Calcium: 243mg | Iron: 1mg | Net Carbs: 11g

Nutritional information is provided as a courtesy and is an estimate only. It may vary depending on ingredient brands, substitutions, and preparation methods. Optional ingredients are not included. Net carbs are typically calculated by subtracting fiber and sugar alcohols (such as erythritol) from total carbohydrates. This information should not be relied upon for medical or nutritional purposes.

Have you ever had grain-free noodles or grain-free lasagna?