20ounceschopped frozen spinachthawed and squeezed dry
1½cupsshredded part-skim mozzarella cheese
Instructions
Preheat oven to 350ºF.
Coat a large, deep lasagna pan with cooking spray.
Measure 2 cups marinara sauce and set aside.
Heat olive oil in a large skillet over medium-high heat.
Add onion and cook, stirring, until almost tender, 3 to 4 minutes.
Add ground chicken and cook, stirring to break it up, until no longer pink, 4 to 5 minutes.
Pour the remaining marinara sauce into the skillet and stir to combine.
In a large bowl, add ricotta, egg whites, garlic powder, and Italian seasoning.
Using a wire whisk, mix well.
Place the reserved 2 cups marinara sauce in the bottom of the prepared pan.
Place 3 uncooked noodles in a single layer over the sauce.
Spread ⅓ of the ricotta mixture over the noodles.
Scatter ⅓ of the spinach over the ricotta.
Sprinkle ⅓ of the mozzarella over the spinach.
Spoon ⅓ of the chicken-sauce mixture over the cheese.
Repeat steps 11 to 15 two more times, ending with the chicken and sauce mixture on top.
Cover the pan tightly with aluminum foil.
Bake for 20 minutes.
Uncover the pan.
Sprinkle the remaining mozzarella over the top.
Bake until the cheese is melted and the edges are bubbly, about 20 minutes.
Remove from the oven and let stand for 10 minutes.
Slice into 8 pieces and serve.
Notes
How to Store and ReheatCool leftovers, cover, and refrigerate for up to 4 days. For freezer storage, wrap individual slices tightly and freeze for up to 2 months. Reheat refrigerated slices in a 350ºF oven, covered, for 15 to 20 minutes until hot. For microwave reheating, cover the slice and heat in short intervals, resting briefly between bursts to keep the layers from drying out.