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Slice of zucchini noodle tofu lasagna on a plate with salad.
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4.89 from 9 votes

Skinny Tofu Zucchini Lasagna

Low carb, healthy lasagna made with zucchini noodles and tofu. This vegetarian main is packed with protein and loaded with Italian flavor!
Prep Time25 minutes
Cook Time45 minutes
Total Time1 hour 10 minutes
Course: Lunch/Dinner
Cuisine: Italian
Keyword: healthy lasagna, zucchini lasagna
Servings: 6


  • 3 small or 2 large zucchini squash
  • 24 oz jar of your favorite store-bought sauce or homemade sauce I love Rao's Homemade
  • ¼ cup egg whites
  • 1 cup 1% cottage cheese I used the Friendship Brand
  • 1/2 teaspoon sea salt + more to taste
  • 1/4 teaspoon ground pepper + more to taste
  • 1/4 cup parmigiano reggiano/parmesean cheese grated or shredded
  • 1 16 oz package of extra firm tofu I love Twin Oaks Tofu
  • 1 cup part-skim mozzarella cheese


  • Drain tofu and press to extract as much liquid as possible. If you don't own a tofu press, you can use the DIY method. Simply wrap the tofu in 1-2 paper towels, the wrap an absorbent kitchen towel around it. Place on a cutting board and top with another cutting board, a plate or another flat surface. Place a heavy object, like cookbooks or canned food on top. You want something heavy so it really presses into the tofu and removes the excess moisture. Let the tofu sit like this for 30 minutes or up to a few hours. The longer you let it sit, the more liquid you'll remove!
  • pray a large casserole dish (I've used a 3 1/2 quart casserole dish as well as a 9X13 baking dish ) with non-stick spray.
  • Chop off ends of the zucchini. Using a mandolin slicer, thinly slice lengthwise into 1/8 inch strips. If you don't have a mandolin, simply slice them lengthwise and try to make sure they are similar in width. These strips will be your lasagna noodles.
  • Boil a pot of water, large enough to fit all your zucchini slices. Once boiling, place zucchini slices in the water and cook for about 4 minutes. Pour zucchini slices and water into a strainer and let the zucchini cool while draining off as much liquid as possible. Carefully place zucchini strips on paper towel or an absorbent kitchen towel to soak up any access liquid. The zucchini noodles will be hot and fragile so do this step carefully, but don't skip it!
  • In a small bowl mix together the cottage cheese and egg whites. Add 1/2 teaspoon sea salt and 1/4 teaspoon ground pepper and mix well.
  • In another bowl or pot, crumble pressed tofu and add marinara sauce. Mix together and give the marinara a taste to see how flavorful it is. If needed, you can add salt, pepper, garlic powder, onion powder or additional spices to give the marinara more flavor!
  • At this point you'll want to preheat your oven to 425°F.
  • Start layering your ingredients: Spread a thin layer of the tofu marinara sauce (about 1/2 of your sauce) on the bottom of your greased baking dish, then add a layer of zucchini lasagna noodles to evenly cover the sauce. Next, evenly spread a layer of the cottage cheese mixture (half of your mixture) over the zucchini. Sprinkle on half of the parmesan cheese.
  • Top with another layer of tofu marinara sauce, then zucchini noodles. Top with another layer of the cottage cheese mixture then mozzarella cheese and remaining parmesan cheese. Sprinkle top of lasagna with additional salt and pepper. Cover with aluminum foil and bake for 25 minutes. Remove foil and bake for 20-25 more minutes, a total of 45-50 minutes. Lasagna is done when bubbly and all the cheese has melted and started to brown a little.
  • Remove from oven, let cool 5-10 minutes, cut and enjoy. Serve with passed parmesan cheese, if desired.



Serving: 1piece | Calories: 254kcal | Carbohydrates: 8g | Protein: 20g | Fat: 16g | Fiber: 1g | Sugar: 2g