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Remarkable Keto Lasagna Bake Recipe (5-Steps)

Editorial note. This is a restrictive eating pattern that is not appropriate for everyone. Do not follow it if you are pregnant or breastfeeding, under 18, have a history of eating disorders, are underweight, or take medication for blood sugar, blood pressure, or thyroid function without first speaking with your clinician. Medically reviewed by Franco Cuevas, MD.

Keto Lasagna Bake Recipe (6g Net Carbs)

A single serving of restaurant lasagna carries 45-60g of carbs from the pasta sheets alone. This keto rebuild uses roasted zucchini and eggplant planks as noodle stand-ins and lands at 6g net carbs per portion. Ready in 55 minutes with a 35-minute bake, it serves 6 with about 32g protein and 30g fat each. A weeknight-friendly bake for anyone on strict keto, low-carb, or a diabetic-friendly plan who misses the Sunday sauce comfort food.

Why This Works on Keto

Zucchini and eggplant sheets replace the semolina pasta layer. Sliced lengthwise on a mandoline to 1/8 inch, salted for 15 minutes to pull water, patted dry, and roasted at 425F for 10 minutes per side, they hold structure like a real noodle without weeping into the sauce.

Eggplant carries a deeper savory note; zucchini stays mild. A mix of both gives the closest texture to a traditional lasagna sheet. The meat sauce uses 80/20 ground beef, canned San Marzano tomatoes (crushed, no added sugar), garlic, and Italian herbs.

The ricotta layer is standard whole-milk ricotta whipped with egg and parmesan. Total carb hit comes from about 1/2 cup tomato at 4g plus 2g from the vegetables. Skipping the pasta drops roughly 40g carbs per serving.

Keto lasagna bake
Keto lasagna bake recipe

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For more on this topic, check out our guide on keto avocado smoothie.

Yield: 6

Keto Lasagna Bake Recipe

Keto lasagna bake
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We've thoroughly searched for you and uncovered the most delicious Keto lasagna bake recipe perfect for those following the diet.

Lasagna lovers no longer need to go without their favorite food while on this diet.

We're willing to bet that even after you finish the keto diet, you'll love this lasagna so much, you'll always bake it like this.

Prep Time 15 minutes
Cook Time 1 hour
Total Time 1 hour 15 minutes

Ingredients

  • 2 tablespoons of olive oil
  • 1 cup of onions (chopped)
  • 1 lb. beef
  • 1 cup of mushrooms
  • 1 can of tomatoes
  • 1 cup of stock
  • 1 cup of cream
  • 4 fl. oz. cream cheese
  • 1 fl. oz. mozzarella
  • 1 fl. oz. cheddar
  • 2 medium-size zucchini
  • Salt and pepper to taste

Instructions

  1. Before you begin, chop the onions and clean the mushrooms with a wet cloth (avoid washing them as they'll absorb water). Grate all the cheese and slice the zucchini lengthwise into thin pieces.
    Preheat a pan on the stove and pour olive oil once it's hot.
  2. Add finely chopped onions and sauté until slightly darkened in color. Add beef, continue sautéing, and cut into pieces until fully cooked.
  3. Once cooked, add the mushrooms, salt, and pepper, and sauté a bit more. Add tomato and continue cooking, then pour in stock. Let it boil, lower the heat and continue cooking until all ingredients are combined. Turn off the stove and set aside the mixture in its pan.
  4. Preheat and add cream, cream cheese, grated mozzarella, and grated cheddar in a new pan. Mix until the cheeses melt and integrate with the cream. Set aside the sauce.
  5. Preheat the oven and line a baking tray with parchment paper. Place a layer of finely chopped zucchini pieces at the bottom, covering it completely. Spread some beef mixture over the zucchini, then pour cheese sauce over it without mixing.
  6. Add another layer of zucchini, beef mixture, and cheese sauce. Repeat until all mixtures are used. Sprinkle grated cheese on top of the lasagna and bake for 40 minutes in the preheated oven.

Nutrition Information

Yield

6

Serving Size

1

Amount Per Serving Calories 380

Ingredient Notes

Salt-drain the zucchini and eggplant. Skip this step and the finished bake pools with water at the bottom. Use whole-milk ricotta at 3g carbs per 1/2 cup, not part-skim, which often contains added starch. Check tomato labels.

Rao’s crushed tomatoes and Cento San Marzano DOP both come in at 4g carbs per 1/2 cup with no sweeteners. Store-brand jarred marinara often adds 6-8g of sugar per serving. Grate parmesan from a block. Pre-shredded parmesan uses cellulose as an anti-cake agent that reads inert but stacks up.

For the ground beef, 80/20 beats leaner grinds because the fat carries the herbs and keeps the meat from turning grainy on a long bake.

Tips and Variations

Build in a 9×13 dish: sauce, vegetable sheet, ricotta, meat, mozzarella, repeat twice, top with mozzarella and parmesan. Rest the bake 15 minutes after it comes out. This is non-negotiable. Slicing hot lasagna at any point in this recipe will collapse the layers.

Cover with foil for the first 20 minutes of baking, then uncover for the last 15 for a browned top. For a dairy-free version, use a cashew ricotta (soaked cashews blended with lemon, nutritional yeast, salt) and skip the mozzarella top, brushing with olive oil for browning instead.

For higher-protein, swap half the ground beef for hot Italian sausage and add another egg to the ricotta layer. For vegetarian keto, replace all meat with a mix of chopped mushrooms and walnuts sauteed with the same herb blend. The walnuts add body and hit close to the mouthfeel of ground meat.

Storage and Reheating

Refrigerate up to 4 days in a covered container. Reheat portions in a 350F oven for 15 minutes covered with foil. Freezes well for up to 2 months, sliced into individual portions and wrapped. Thaw overnight in the fridge before reheating. Microwaving turns the vegetable sheets watery. Oven reheating preserves the layer separation.

Current Version
August 8, 2026
Edited By
Damla Sengul
August 4, 2026
Edited By
Damla Sengul
Medically Reviewed By
Franco Cuevas, MD
August 1, 2026
Edited By
Damla Sengul
Medically Reviewed By
Franco Cuevas, MD
  1. Harvard T.H. Chan School of Public Health. Diet Review: Ketogenic Diet for Weight Loss. Source
  2. Mayo Clinic. Is the keto diet safe? What are the risks? Source
  3. Cleveland Clinic. What is the keto diet? Source
  4. Bueno NB, et al. Very-low-carbohydrate ketogenic diet v. low-fat diet for long-term weight loss: meta-analysis. Br J Nutr. 2013. Source
  5. USDA FoodData Central. Source
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