Oven BakedLasagnaMarinara SauceMozzarellaPolenta

Polenta Lasagna

Nutriforks
Nutriforks
·5 min read·Published: Jan 14, 2026
Polenta Lasagna
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This polenta lasagna is an easy, gluten-free weeknight dinner made with store-bought polenta, marinara, veggies, and lots of cheese. Perfect for busy nights!

If Marinara Sauce is what brought you here, Stuffed Shells, Sheet Pan Sausage Gnocchi, or Ravioli Lasagna deserve a spot on your list too.

Why This Polenta Lasagna Works So Well

I’ve always been a lasagna person, but sometimes I want something a little lighter. That’s where this polenta lasagna comes in. Instead of pasta noodles, I use store-bought polenta sliced into thin rounds. It’s naturally gluten-free, but you’d never miss the wheat. The polenta soaks up the marinara and gets tender in the oven, while the ricotta and mozzarella make it plenty cheesy. My kids ask for this even over traditional lasagna. Serve it with garlic bread for a complete weeknight dinner that feels special but takes almost no effort.

Reasons You’ll Love This Polenta Lasagna

  • It’s gluten-free without any special ingredients, just swap pasta for polenta.
  • The polenta slices cook up creamy and tender, and they hold up better than noodles in a layered dish.
  • You don’t have to boil anything; just sauté the veggies and layer everything.

Key Ingredients for Polenta Lasagna

  • Polenta: Use a 18-ounce tube of pre-cooked polenta. It’s shelf-stable and slices easily. For a different texture, you can use homemade polenta, but you’ll need to let it cool and firm up before slicing.
  • Marinara sauce: Pick your favorite jarred marinara, a good-quality one makes a difference since it’s the backbone of the dish. You’ll need about 24 ounces (3 cups).
  • Ricotta: Whole-milk ricotta gives the creamiest result. Part-skim works too. If you’re out, substitute cottage cheese that’s been blended smooth.

Kitchen Tools for Polenta Lasagna

  • Large skillet for sautéing vegetables
  • 7×11-inch (2-quart) baking dish, the recipe is designed for this size
  • Sharp knife for cutting the polenta evenly
  • Small bowl for mixing the ricotta

Tips for Making the Best Polenta Lasagna

When slicing the tube polenta, use a sharp knife and aim for 1/4-inch pieces. Any thicker and they won’t soften enough during baking; any thinner and they might fall apart. Cook the onions, peppers, and mushrooms just until they release their moisture, about 5 minutes, so the lasagna doesn’t turn watery. Add the spinach last and let it wilt, then stir in the garlic for just a minute. For neat layers, spread a thin layer of marinara on the bottom of the dish before adding the first polenta round, this prevents sticking and keeps everything moist.

Polenta Lasagna Variations to Try

If you want to add meat, brown a pound of Italian sausage or ground beef with the onions. For a different vegetable mix, try zucchini, yellow squash, or roasted eggplant. If you’re dairy-free, swap the ricotta for a vegan version and use plant-based mozzarella, the polenta itself is dairy-free. To change the flavor, use a spicy marinara or add a layer of pesto between the polenta sheets.

What to Serve with Polenta Lasagna

This polenta lasagna is hearty enough on its own, but a side of garlic bread is always welcome for soaking up extra sauce. A simple green salad with a tangy vinaigrette cuts through the richness. If you’re feeding a crowd, serve it with roasted broccoli or a Caesar salad.

How to Store Leftover Polenta Lasagna

Leftover polenta lasagna keeps in the fridge for up to 4 days. Cover the dish tightly with foil or transfer portions to an airtight container to keep the polenta from drying out.

How to Freeze Polenta Lasagna

To freeze, let the baked lasagna cool completely. Wrap the dish in a layer of plastic wrap, then foil, and freeze for up to 3 months. Thaw overnight in the fridge before reheating.

How to Reheat Polenta Lasagna

For best results, reheat in a 350°F oven, covered with foil, for about 20 minutes, or until warmed through. The microwave works in a pinch, but the oven helps the polenta stay tender rather than mushy.

Polenta Lasagna FAQs

Can I make this polenta lasagna ahead of time?

Yes. Assemble the lasagna completely, then cover and refrigerate for up to 24 hours before baking. Add about 10 minutes to the baking time if starting from cold.

Can I use homemade polenta instead of store-bought tube?

Absolutely. Cook 1 cup of polenta with 4 cups of water or broth, then spread it on a sheet pan to cool and set. Once firm, cut into slices. This adds time but gives you more control over the texture.

Is this recipe gluten-free?

Yes, as long as you use gluten-free polenta (most brands are) and a gluten-free marinara sauce. All other ingredients are naturally gluten-free.

Can I add meat?

Yes. Brown 1 pound of Italian sausage or ground beef with the onion and peppers. Drain off excess fat before layering.

Recipe

Polenta Lasagna

Polenta Lasagna

Polenta Lasagna- this hearty lasagna is made with store-bought polenta, marinara sauce, vegetables, and of course lots of cheese! It is super easy to make, gluten-free, and delicious! The perfect meal for weeknights or easy entertaining!

easyVegetarian

10 min

Prep Time

45 min

Cook Time

55 min

Total Time

12

Servings

Dinner

Course

Italian

Cuisine

254 kcal

Calories

Ingredients

Servings
  • 1 tbsp olive oil
  • 0.5 yellow onion, diced
  • 1 red bell pepper, diced
  • 8 oz mushrooms, sliced
  • 4 cup spinach, packed
  • 4 cloves garlic, minced
  • 1 cup ricotta cheese
  • 1 egg egg, large
  • 0.5 tsp dried basil
  • 0.25 tsp dried oregano
  • 18 oz polenta, tube
  • 24 oz marinara sauce
  • 2 cup shredded mozzarella cheese, divided
  • 0.5 cup shredded Parmesan cheese

garnish

  • freshly chopped basil
  • crushed red pepper flakes

Instructions

  1. 1

    Preheat oven to 375 degrees F.

  2. 2

    In a large skillet, heat the olive oil over medium-high heat. Add the onion, red pepper, and mushrooms. Cook until tender, about 5 minutes. Add the spinach and cook until wilted, about 2 minutes. Add the garlic and cook for 1 minute. Remove from the heat and set aside.

  3. 3

    In a small bowl, combine the ricotta cheese, egg, dried basil, and oregano. Stir until smooth.

  1. 4

    Use a sharp knife to thinly slice the polenta, about 1/4-inch thick.

  2. 5

    Grease a 2-quart rectangular baking dish (7 X 11-inch). Spread about ½ cup of the

Nutrition (per serving)

254kcal

Calorie breakdown

Protein27%71 kcal
Fat55%145 kcal
Carbohydrates18%47 kcal
How this was calculated — 14 of 16 ingredients matched
olive oilOil, corn, peanut, and olive133 kcal
yellow onionOnions, yellow, raw0 kcal
red bell pepperPepper, banana, raw0 kcal
mushroomsMushrooms, morel, raw70 kcal
spinachSpinach, raw221 kcal
garlicGarlic, raw30 kcal
ricotta cheeseCheese, ricotta, whole milk377 kcal
dried basilBasil, fresh1 kcal
dried oreganoSpices, oregano, dried3 kcal
marinara sauceSauce, pasta, spaghetti/marinara, ready-to-serve306 kcal
shredded mozzarella cheeseCheese, mozzarella, whole milk1435 kcal
shredded Parmesan cheeseCheese, parmesan, hard470 kcal
freshly chopped basilBasil, fresh0 kcal
crushed red pepper flakesPepper, banana, raw0 kcal
Serving size ≈ 229 g · 12 servings

Nutrition information is automatically calculated from USDA FoodData Central, so should only be used as an approximation. Actual values may vary depending on the ingredients, brands, and preparation methods used.

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Keyword: gluten-free, nut-free, Oven Baked, vegetarian

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Tags:gluten-freenut-freevegetarian

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Nutriforks

NutriForks is a home-cooking site built around two simple ideas: recipes should actually work, and you should know what’s in them. Every recipe pairs clear, tested instructions with a full nutrition breakdown, so healthy, everyday cooking is genuinely easy.

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