Polenta Lasagna With Spinach and Herby Ricotta

Polenta Lasagna With Spinach and Herby Ricotta
David Malosh for The New York Times. Food Stylist: Simon Andrews.
Total Time
2½ hours
Rating
4(1,649)
Notes
Read community notes

With a dense, creamy texture and sweet corn flavor, this hearty and unexpected variation on the usual lasagna uses layers of Parmesan-topped baked polenta in place of pasta. This meatless recipe is speckled green with baby spinach and lots of parsley and basil. Be sure to get a good brand of marinara sauce, preferably a chunky one with bits of tomato, for the richest flavor and texture. Or even better, if you have homemade marinara sauce tucked away in the freezer, use it here instead.

Featured in: It’s Casserole Season. For That, There’s Polenta Lasagna.

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Ingredients

Yield:8 to 12 servings
  • 4tablespoons unsalted butter, plus more for greasing the pan
  • 1tablespoon plus ½ teaspoon kosher salt
  • 2cups polenta (not instant)
  • 5ounces baby spinach (about 5 cups)
  • 2cups grated Parmesan
  • 1pound whole-milk ricotta (about 1⅔ cups), preferably fresh
  • 3tablespoons finely chopped parsley
  • 2tablespoons finely chopped fresh basil (or use more parsley)
  • 1large egg
  • ½teaspoon black pepper
  • teaspoon grated fresh nutmeg
  • 1(25-ounce) jar good-quality marinara sauce (3 cups)
  • Large pinch of red-pepper flakes, 1 pinch of dried oregano, 1 grated garlic clove or a drizzle of good extra-virgin olive oil, or a combination (optional)
  • 1pound shredded mozzarella (about 4 cups)
Ingredient Substitution Guide
Nutritional analysis per serving (10 servings)

518 calories; 29 grams fat; 17 grams saturated fat; 0 grams trans fat; 8 grams monounsaturated fat; 2 grams polyunsaturated fat; 36 grams carbohydrates; 3 grams dietary fiber; 5 grams sugars; 28 grams protein; 975 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

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Preparation

  1. Step 1

    Heat oven to 425 degrees and butter an 13-by-18-inch rimmed baking sheet pan. Grease a rubber spatula with butter.

  2. Step 2

    Prepare the polenta: In a large pot, bring 6 cups water and 1 tablespoon salt to a boil over high heat. Reduce heat to medium, then slowly pour in polenta, whisking constantly. Cook, whisking often, until polenta thickens, 8 to 12 minutes. Whisk in 4 tablespoons butter until melted. Whisk in spinach until wilted, about 2 minutes. Remove from heat and mix in 1 cup grated Parmesan.

  3. Step 3

    Scrape polenta onto the prepared baking sheet. Using the greased rubber spatula, spread the mixture into a thin, even layer to cover the entire pan, all the way to corners. Sprinkle ½ cup grated Parmesan on top. Bake until polenta is firm and cheese has melted, 12 to 18 minutes. Let cool in the pan on a wire rack until completely cooled, about 1 to 1½ hours, or place in refrigerator until cool to touch, about 40 to 50 minutes. (Polenta can be baked the day before and refrigerated until needed.)

  4. Step 4

    When ready to bake the lasagna, heat oven to 400 degrees. Butter a 9-by-13-inch baking dish.

  5. Step 5

    Prepare the ricotta filling: In a small bowl, mix ricotta, parsley, basil, egg, black pepper, nutmeg and the remaining ½ teaspoon salt. Mix until well combined and set aside.

  6. Step 6

    Taste the marinara sauce. If it needs some zip, stir in any or all of the optional ingredients.

  7. Step 7

    Assemble the lasagna: Using a knife or pizza cutter, cut cooled polenta in half widthwise, creating 2 pieces roughly 9 by 13 inches each. Using a large spatula, gently place one half in prepared baking dish. (It is important for polenta to be completely cooled and firm; otherwise, the pieces may break when transferring to baking dish. If anything breaks, just reassemble it in the pan. It won’t make much of a difference once it’s covered in sauce and baked.)

  8. Step 8

    Spread about half the ricotta mixture in an even layer on top of polenta. Pour about half of marinara sauce on top of ricotta, sprinkle with about half of the shredded mozzarella. Repeat with remaining polenta, ricotta, marinara and mozzarella. Once assembled, sprinkle the remaining ½ cup Parmesan on top.

  9. Step 9

    Place baking dish on top of a rimmed sheet pan in case the lasagna bubbles over. Bake until cheese melts, about 30 minutes. If you like, you can broil lasagna for 2 minutes after baking until cheese starts to bubble and develop brown spots.

  10. Step 10

    Remove from oven and let lasagna stand for about 15 minutes to firm up before serving. Leftovers can be refrigerated for up to 1 week or frozen for up to 3 months.

Ratings

4 out of 5
1,649 user ratings
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Cooking Notes

Oh, Melissa. You always make it too hard! My nonna made polenta regularly. Start the polenta in cold water and let it sit for 10-15 minutes, then put it on the stove. No lumps and smooth consistency. Add some ricotta or marscapone to the polenta along with Parmesan cheese, and it also becomes more silky. Let it cool just a bit, then just ladle or spoon it over sauce and add layers of other delicious things. Bake it all and serve.

I've made a variation of this dish with the pre-cooked polenta in plastic sleeves (also adding more veggies like red peppers and onions to the sauce) and it is delicious, easy and quick to assemble.

This is in spirit very much like a dish we often had as kids made by a Swiss friend of our parents, which lacked the ricotta and mozzarella needed to make the lasagna, but which was layered with polenta and marinara. Each layer of the dish also contained lots of crisply fried onions (2-3 onions worth, crispy and brown) which also topped the dish. Perfect for a winter dinner, especially when the adults get to have a nice sangiovese or another juicy norther Italian red

Loved it, but agree with others: unnecessarily complicated. Made half a recipe. Put spinach between the layers, not in the polenta. When polenta was cooked, divided it between two square 9-in. baking dishes, baked until firm and cheese getting brown. After cooling for 20-30 minutes, removed one of the polenta squares to a cooling rack. Then layered ricotta mixture, sauce, spinach and cheese on polenta in other dish, topped with other polenta square, then rest of ingredients.

Hmmm, no need to call it lasagna, it’s polenta and you can make it the very same day! When hot and donde pour half of the polenta in the pan, add all the ingredients ricotta, mozzarella, etc and then quickly pour the other half of the polenta and... done! To the oven it goes. Cold next day or heated it’s delicious! Note: no need of butter just extra olive oil! And the oregano should be Italian, not the Greek oregano which is way too strong. And no nutmeg either! Buen provecho!

Opted to put down parchment for baking the polenta which was really helpful when cutting and transferring. FOrgot to add the spinach in the polenta so cooked it and rang out the water and added to the ricotta mixture instead. Really hearty vegetarian dish that could also take sausage if you are looking to add a protein.

Yes . I have made it by slicing the polenta into discs and grilling before assembling the Lasgna

I don’t think it’s complicated and I like the idea of mixing the spinach in with the polenta. My grandkids are much more inclined to eat it that way. Not sure people have such a burning desire to change well-tested recipes, especially on the first try.

Any savory dish I make with ricotta, I always mix into it everything being added to the ricotta (except the egg) 8 to 24 hours ahead and let the flavors meld in the refrigerator in a tightly covered container, for this I added a very very very finely minced clove of garlic & 1 TLB of very very very finely minced onion (whatever kind you have, mine are usually sweet.). When ready to use the ricotta in the dish stir in the beaten egg. The above results in much better flavored ricotta.

It’s been a long time since I’ve used those pre-cooked plastic tubes of polenta. But this is the perfect recipe for it and cuts cooking time WAY down. I cut and layered the polenta but made the mistake of making the slices too thin. I’d suggest 1/4”-1/2” slices so the polenta doesn’t just become total mush. It’s nice to have a little structure besides sauce and cheese.

This is yet another variation on mamaliga. My Romanian mother made it with layers of polenta (or mush as she called it), American cheese, and sour cream, then baked it. A heart attack on a plate, but no better comfort food anywhere.

I love this idea, as I have a DIL who has Celiac disease and while we all love pasta, we never serve it for her, but this would be a familiar and comforting dish that we could all share.

Polenta is a breeze with Instant Pot (or similar). Plus no painful splatters that tend to happen with traditional stove top method. Whisk 1 cup polenta with 4 cups water in Instant Pot. Season with 1 tsp. salt and freshly ground pepper. Bring to simmer, whisk again, then seal pressure cooker. Cook high pressure 9 min, natural release (it will splatter with quick release, but after a 15-20 min can open vent if desired). Finish with a knob of butter & grated Parmesan to taste.

I have made a more simple version of this dish for years, Polenta Concia, from Madeleine Kamman's "Madeleine Cooks" (1986). Can't remember seeing the public TV show which this was a companion to, but the cookbook is full of great recipes, easily executed. Her sauce includes onion, tomatoes, mushrooms, parlsey, garlic, anchovies and Fontina or Gruyere cheese.

It seems a little odd to put a layer of the ricotta mixture on top, with no polenta over it. Something tells me some mushrooms would be yummy in this too.

I love this recipe so much. I live in South Africa where good ricotta is hard to find. I use cottage cheese as a replacement. It’s so good. I can’t wait to make this for dinner again!

I have now made this 3-4 times, use leftover polenta (I use lots of parm in my polenta!), spread it into my deep 9x9 dish, cut a layer of parchment and spread the second layer on the parchment in the pan. Pop in the fridge over night. Then layer all the ingredients the next day for dinner. Sometimes some sausage, sometimes sauteed spinach or chard. This time I just threw spinach into the bubbling tom sauce. It is so, so good! Maybe a bit better when the polenta is baked first.

Made the recipe exactly as written this past weekend for a dinner party, and it was a huge hit. Really, really delicious. Not sure why people think it’s complicated. I found it to be straightforward and easy.

This was delicious and I thought way better than lasagna made with gluten free pasta. The polenta is a lot heavier than pasta so a little goes a long way.

Can I use grits if I do not have polenta?

Simplified this recipe a little. 1 cup fine polenta cooked with 4-5 cups water, spinach, Parmesan, knob of butter and cracked black pepper. Skipped step 3 entirely. Poured creamy polenta into buttered 8x12 pan. Next layered ricotta mixture. Then marinara with cut up cooked Italian sweet sausage. Finally, layer with mozzarella. Bake until bubbly. Polenta lasagna becomes easy to slice at room temp.

This was delicious. Everyone really enjoyed it. I made one significant change: I only used half a tablespoon of salt in the polenta mixture instead of the full tablespoon, which seemed like way too much. With just the half tablespoon, we all found the recipe was perfectly seasoned. Also: do not skip the step of spreading out the polenta and baking it, then cooling it. If you just make layers with the hot mush, the lasagna will not have defined layers and with lack any structural integrity.

Way too much salt in the polenta! Half it. A home made marinara needs to be really thick or it gets super runny. I would make the polenta softer, and cool it more like noodles so you could pick them up instead of creating a cardboard like layer. It takes too long for them to soften in the oven. The ricotta was way too runny also-- I would add the mozzarella (not fresh) to its middle layer. Use a firm ricotta. This recipe is popular but disappointing . Also I cooked it about an hour.

This was delicious! I used Rao's tomato sauce and added a layer of sauteed mushrooms and spinach (instead of incorporating spinach into polenta.) It was so good!

Family loved this, even my polenta adverse 15 yo. Prepared as written with the only adjustment being adding the entire 8oz bag of spinach vs the stated 5oz. Makes a ton and am looking forward to the leftovers.

I thought I read several notes that suggested skipping the step of pre-baking the polenta. DON’T! Unless you want a delicious polenta soup. Also, I tried the tip of soaking the polenta for 10-12 minutes before bringing to a boil and it worked great!

Recipe works perfectly as is and it’s not complicated in the least. I did use parchment paper as suggested by a reader and made the ricotta more flavorful by adding garlic and shallots. Easily a weeknight dinner.

I am making this for travel: Should I make it and bake it or make it refrigerate and cook when I am ready? ( which will be 2 days later)

This is tasty and inventive, but totally unnecessary. It left me feeling I rather just save time and eat polenta and assemble everything else as toppings.

This was really delicious! We made the polenta a day in advance, and everythibg was very quick to pull together. Thought it might be a little bland with all the cheese but the herbs and polenta added a great flavour and texture. Next time will add extra spinach to the polenta, and more basil to the ricotta.

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