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Mushroom and Sweet Onion Lasagna

Mushroom and Sweet Onion Lasagna

I think it’s officially lasagna season, at least it is here in New York where it dipped down to the 40s last night. But even if it is still warm where you are, this lasagna has elements that make it as perfect for cooler weather (caramelized onions, earthy mushrooms, gooey cheese and walnuts) as it does for warmer days (bright spinach and a light white sauce that replaces tomatoes). And as with all the recipes from Eating Well magazine, it is a very healthy dish without sacrificing taste and texture.

INGREDIENTS
8 ounces lasagna noodles, preferably whole-wheat

Caramelized Onion Filling
3 tablespoons extra-virgin olive oil
3 large sweet onions, thinly sliced (about 10 cups)
4 medium portobello mushroom caps, gills removed, diced
1/2 cup red wine
1 teaspoon salt
Freshly ground pepper, to taste

Spinach and Cheese Filling
4 cups baby spinach
2 cups non-fat ricotta cheese
1/2 cup chopped fresh basil
1/2 teaspoon salt

White Sauce and Topping
2 tablespoons extra-virgin olive oil
3 tablespoons all-purpose flour
2 cups low-fat milk
1/2 teaspoon salt
2 ounces crumbled Gorgonzola cheese
1/3 cup chopped walnuts
1/4 cup chopped fresh basil

1. Bring a large pot of water to a boil. Cook noodles until not quite al dente, about 2 minutes less than the package directions. Drain; return the noodles to the pot and cover with cool water.

2. Prepare onion filling: Heat 3 tablespoons oil in a large skillet over medium heat. Add onions and cook, stirring frequently, until golden brown and very soft, about 25 minutes. (If they begin to stick, add water 1/4 cup at a time to release them and prevent burning.) Add mushrooms and cook, stirring, until just beginning to soften, about 3 minutes. Add wine and 1 teaspoon salt and continue cooking until most of the liquid is absorbed, 2 to 3 minutes. Remove from heat; stir in pepper.

3. Prepare spinach filling: Place spinach, ricotta, basil and 1/2 teaspoon salt in a food processor and process until smooth.

4. Prepare white sauce: Heat 2 tablespoons oil in a medium saucepan over medium-high heat. Add flour and stir until bubbling, about 30 seconds. Gradually whisk in milk and 1/2 teaspoon salt and bring to a boil, whisking constantly. Cook, whisking, until the sauce has the consistency of thick gravy, about 1 minute. Add Gorgonzola and gently whisk until it is melted. Remove from the heat. (The sauce will continue to thicken as it sits.)

5. To assemble lasagna: Preheat oven to 375F. Grease a 9-by-13-inch baking pan. Drain the noodles and spread out on a kitchen towel. Spread 1/2 cup white sauce in the prepared pan. Place a layer of noodles over the sauce. Spread half of the spinach filling over the noodles and top with one-third of the onion filling. Evenly spread 1/2 cup white sauce over the onions. Repeat with another layer of noodles, the remaining spinach filling, half the remaining onion filling and half the remaining white sauce. To finish, top with a third layer of noodles, spread the remaining onion filling over the noodles and then spread or dollop the remaining white sauce on top. Sprinkle with walnuts and basil.

6. Bake until hot and bubbling, about 30 minutes. Let rest for 5 minutes before serving.

TIPS
Onions contain a volatile compound called lachrymator that reacts with the fluid in your eyes and makes them water. To chop them without crying, try wearing goggles, burning a candle nearby or cutting them under cold water. To mellow the bite of a raw onion, soak it for an hour in 1 cup cold water, 1/4 cup vinegar and 1/2 teaspoon salt and then rinse thoroughly.

The dark gills found on the underside of a portobello mushroom cap are edible, but can turn a dish an unappealing gray/black color. Remove the gills with a spoon, if desired.

Per serving: 345 calories; 14 g fat (3 g saturated fat, 7g mono unsaturated fat); 9 mg cholesterol; 39 g carbohydrates; 16 g protein; 8 g fiber; 680 mg sodium; 514 mg potassium.

Nutrition bonus: Vitamin C (23% daily value), Calcium (16% dv), Vitamin A (15% dv).

Exchanges: 1 1/2 starch, 2 vegetable, 1 medium-fat meat, 2 fat.

Carbohydrate servings: 2.

Visit EatingWell.com for free quick and easy healthy recipe collections!

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13 comments

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6:09PM PDT on Jun 6, 2014

Sounds so yummy, Lot of work.

6:05PM PST on Feb 3, 2014

Wow

2:41PM PST on Jan 22, 2014

Sounds great,must try it.Thanks for sharing

1:53AM PST on Jan 22, 2014

Thank you :)

12:40PM PST on Jan 21, 2014

OMG! Is this heaven on earth? I don't "clip" many recipes, but this one seems like a keeper.

8:59PM PDT on May 23, 2013

Looks delicious, will have to try this.

12:46AM PDT on Sep 6, 2011

Wow! Awesome! Thanks for posting these fabulous recipes. Mouth-watering!

4:52PM PST on Nov 30, 2008

Thank you very much for posting this recipe. This will definitely make it to my dinner table this week.

Raighne

11:16AM PST on Nov 14, 2008

I made this recipe a couple of days ago and it was absolutely delectable! I was So Yummy! The leftovers are even tastier the next day! Definitely a must try recipe!!!

6:07AM PDT on Oct 13, 2008

Hi Tricia: Good point! The nutritional info is based on 9 servings.

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