Cauliflower Lasagna

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Eat your veggies while indulging on this delicious lasagna!

This cauliflower lasagna is the perfect way to use up that head of cauliflower that’s been sitting in the back of the fridge calling to you every time you open the refrigerator door. Eaten as is, or with marinara poured over the top, this is a great way to get your veggies!

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Cauliflower Lasagna

This filling vegetarian dish is a great way to get your family to eat their vegetables without a fuss!
Prep Time 10 minutes
Cook Time 1 hour 30 minutes
Total Time 1 hour 40 minutes
Yield 8 people
Serving Size 1 cup
Course Dinner
Cuisine Italian
Author SkinnyMs.


  • 12 ounces whole wheat lasagna noodles cooked to package directions
  • 1 head of cauliflower raw
  • 1/4 pound white mushrooms sliced
  • 4 cups low-fat milk
  • 1/4 cup whole wheat flour we used white whole wheat flour
  • 1 white onion large, chopped
  • 1 tablespoon onion powder
  • 2 tablespoons olive oil
  • 1 1/4 cup parmesan cheese freshly grated


  • Cook the pasta as directed. Once cooked, drain and refill pot with cold water. This will keep your noodles from sticking together.
  • Saute the onion in 1 tablespoon olive oil over low to medium heat. When finished, add the second tablespoon of olive oil and quickly whisk in the flour.
  • Whisk in the milk, a little at a time, being sure to dissolve any clumps from the flour with the whisk.
  • Do not stop whisking because the flour burns in the pan very easily, even after the milk is added.
  • Add the onion powder and then 1 cup of the cheese. You should have a relatively thick sauce at this point.
  • Remove from heat.
  • In a lightly oiled lasagna pan (ours was 9X13), place the first layer of noodles on the bottom.
  • Add a layer of cauliflower, then mushrooms and then sauce. Repeat.
  • Finish with noodles on top and then sprinkle with the remaining 1/4 cup parmesan.
  • Cover lightly with foil and bake at 350 degrees F. for about 1 hour to 1 - 1/2 hours, or until cauliflower is soft and cooked through.
  • CAUTION! Because of the cauliflower, this lasagna retains it's heat in a big way. So allow ample time for it to cool down.


Just in case you make this and end up feeling like lasagna should really have red sauce, this is excellent with a little marinara over it too. Enjoy!

Nutrition Information

Serving: 1cup | Calories: 350kcal | Carbohydrates: 47g | Protein: 18g | Fat: 10g | Saturated Fat: 4g | Cholesterol: 20mg | Sodium: 317mg | Potassium: 601mg | Fiber: 4g | Sugar: 10g | Vitamin A: 366IU | Vitamin C: 37mg | Calcium: 354mg | Iron: 1mg |
SmartPoints (Freestyle): 5
Keywords Pasta, Vegetarian

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    1. Kelli, Did you add the 1/4 cup all purpose whole wheat flour to the olive oil? You should let the flour get a little golden and fragrant, incorporating with the oil and onions to form a paste, and stirring all the while. The milk should be added in a gradual stream stirring all the while. The olive oil and flour is called your roux(sometimes they are butter based), once you gradually whisk in the milk a bechamel sauce is formed, and adding any cheese will turn it into a mornay sauce. Was the milk you used 1% or higher?

      1. Yes I used the flour. I used skim milk b/c that is all I had. I have since made it again and it was still
        runny 🙁 It was also bland. I used garlic powder and onion powder. Is there something else I could use to give it some more flavor?

        1. Kelli, Parmesan cheese and 2% milk. Make sure a paste forms with the flour before you slowly whisk in the milk, and add parmesan at this stage as well.

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