Ingredients

  • 1 lb. Swiss chard, well rinsed, or 16 oz. frozen spinach
  • 2 tsp. olive oil
  • 1 lb. cremini or baby bella mushrooms, quartered
  • 3 cloves garlic, minced
  • 1/4 tsp. crushed red pepper
  • 1 26-oz. jar marinara sauce
  • Salt and freshly ground black pepper to taste
  • 1 large egg
  • 1 15-oz. container low-fat ricotta cheese
  • 23 cup freshly grated Parmesan cheese
  • 1 8- to 9-oz. pkg. oven-ready lasagna noodles (12 to 16 noodles)
  • 2 cups grated part-skim mozzarella cheese

Method

  • Bring large pot of water to a boil.
  • Remove stems from Swiss chard leaves; cut stems into 1/2-inch lengths.
  • Cut leaves into 1-inch strips.
  • Add stems to boiling water, cover and cook 3 minutes.
  • Add leaves, cover and cook until tender, 3 to 4 minutes.
  • Drain, rinse under cold water; press out excess moisture.
  • Heat oil in nonstick skillet over medium-high heat.
  • Add mushrooms, and cook, stirring occasionally, 3 to 5 minutes, or until browned.
  • Add garlic and crushed red pepper; cook, stirring, about 10 seconds.
  • Transfer to bowl, and stir in Swiss chard and 2 cups marinara sauce.
  • Season with salt and pepper.
  • Whisk together egg, ricotta, 1/3 cup Parmesan cheese, salt and pepper in bowl.
  • Put 3 or 4 lasagna noodles in large bowl, and cover with warm water; let soak.
  • Preheat oven to 400F (unless making ahead to bake later).
  • Spread about 1/2 cup marinara sauce in 9x13-inch baking dish coated with cooking spray.
  • Place 3 or 4 dry noodles over sauce.
  • Cover with 2/3 cup ricotta mixture.
  • Top with 1 1/2 cups Swiss chard mixture.
  • Sprinkle with 1/2 cup mozzarella.
  • Repeat layering two times.
  • Lift soaked noodles from water, pat dry and arrange on top of lasagna.
  • Cover with remaining marinara sauce.
  • Tightly cover pan with aluminum foil.
  • (Lasagna can be prepared ahead to this point, and refrigerated up to 2 days.)
  • Bake 35 minutes, and uncover.
  • Sprinkle with remaining Parmesan cheese and mozzarella.
  • Bake, uncovered, until noodles are tender, about 15 minutes.
  • Let stand 5 minutes before serving.