Lasagna stuffed mushrooms are loaded with savory flavor and keto-friendly!

Portobello mushrooms are stuffed with meaty marinara sauce, topped with a cheesy spinach filling with mozzarella cheese then baked to bubbly perfection.

close up of cheesy Lasagna Stuffed Mushrooms

Holly’s Stuffed Mushrooms Highlights

  • Flavor: Meaty, cheesy, low-carb lasagna? Yes, please!
  • Difficulty: Super easy to make and so elegant on the table.
  • Prep Note: Prep sauce and filling ahead of time and bake when ready.
  • Swaps: Use any leftover low-carb meat or veggies for this recipe.
spinach , mozzarella , spinach , parmesan , low carb pasta sauce , italian seasoning , ricotta , portobello mushrooms with labels to make Lasagna Stuffed Mushrooms

What’s in Lasagna Stuffed Mushrooms

Mushrooms: Choose fresh and firm portobellos with deep caps. It’s okay if they crack, they’ll still taste delish. Baby bellas or larger white mushrooms will work, chop up the stems and add them to the meat sauce, or freeze them for another recipe.

Meat Sauce: Rao’s pasta sauce is a first choice for low-carb, low-sugar sauce, but it’s easy to make it yourself. Even the Italian seasoning can be made from scratch with plenty of extra for other recipes.

Cheese Filling: Protein-packed eggs, cottage cheese, and spinach make this filling rich and creamy. Cottage cheese is a budget-friendly swap for ricotta.

Our Favorite Ingredient Swaps

  • Instead of marinara, try a ‘white lasagna’ and use a homemade keto alfredo sauce.
  • Omit the meat for cauliflower rice for a veggie version.
  • Sprinkle on mozzarella, parmesan, crumbled feta, and some chopped chives before baking for more visual appeal.

How to Make Lasagna Stuffed Mushrooms

  1. Prep portobello mushrooms (full recipe below).
  2. Make sauce and ricotta cheese mixture.
  3. Scoop the ricotta mixture and meat sauce evenly into each mushroom cap.
  4. Top with mozzarella cheese and bake until cheese is melted.
Lasagna Stuffed Mushrooms on a plate with a piece taken out of one

Storing and Reheating Leftovers

Leftover lasagna stuffed mushrooms can be kept in a covered container in a single layer for up to 3 days. Reheat them in the microwave or under the broiler with a little extra cheese on top.

Due to their high water content, mushrooms don’t thaw well once frozen, but this recipe is so easy you can start fresh every time with little effort.

Love Your Leftovers!

Chop up your leftover stuffed mushrooms and add them to a keto lasagna zucchini boat, or a hearty cheesy cauliflower casserole.

Serve Stuffed Mushrooms With…

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Lasagna Stuffed Mushrooms

Lasagna stuffed mushrooms are the perfect entree or appetizer for just about any occasion.
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings 8 mushrooms

Ingredients  

  • 4 large portobello mushrooms
  • 1 cup mozzarella cheese shredded

Meat Sauce

Ricotta Mixture

  • 1 cup ricotta cheese or cottage cheese
  • 1 egg
  • 3 ounces frozen spinach thawed and squeezed dry, optional
  • 2 tablespoons grated parmesan cheese

Instructions 

  • Preheat oven to 375°F.
  • Wash and dry mushrooms. Remove stems and scrape out gills, discard.
  • In a medium saucepan, brown beef over medium-high heat. Add pasta sauce and Italian seasoning, reduce heat, and simmer for 5 minutes.
  • Combine ricotta, egg, spinach, and parmesan cheese in a small bowl. Divide over mushroom caps.
  • Divide meat sauce over mushrooms.
  • Top with mozzarella cheese and bake 20-25 minutes or until golden and mushrooms are softened.

Notes

If desired, mushroom stems can be finely diced and cooked with the ground beef rather than discarded.
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Nutrition Information

Calories: 169kcal | Carbohydrates: 5g | Protein: 15g | Fat: 10g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Trans Fat: 0.1g | Cholesterol: 69mg | Sodium: 320mg | Potassium: 436mg | Fiber: 1g | Sugar: 2g | Vitamin A: 1661IU | Vitamin C: 3mg | Calcium: 175mg | Iron: 2mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Main Course
Cuisine American

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