Go Back
–+ servings
Close-up of white sauce chicken spinach lasagna with layers of tender lasagna noodles, creamy white sauce, shredded chicken, and wilted spinach. The top is covered in melted golden cheese with lightly browned edges, showing a rich, cheesy texture and creamy filling inside.

High Protein Creamy White Sauce Chicken Lasagna with Spinach

Nesting Lane
High Protein White Sauce Chicken Spinach Lasagna is a cheesy, filling casserole packed with chicken, spinach, and a homemade white sauce.
No ratings yet

Recipes are written with one action per step for accessibility. Short lines. Fewer rereads. A calmer kitchen on mobile or desktop.

Print Recipe Save to Pinterest
Prep Time 25 minutes
Cook Time 45 minutes
Total Time 1 hour 10 minutes
Course Main Course
Cuisine American
Servings 6

Equipment

Large Skillet
Medium Saucepan
Whisk
9 x 13 Baking Dish
Mixing Bowl
Measuring Spoons
Measuring Cup
Wooden Spoon

Ingredients
 

Instructions
 

  • Preheat oven to 375°F. Lightly coat a 9 x 13 inch baking dish with nonstick spray.
  • Heat olive oil in a large skillet over medium heat. Add minced garlic and cook for 30 seconds.
  • Add chopped spinach and cook until just wilted. Remove skillet from heat.
  • Stir shredded chicken into the spinach and set aside.
  • In a medium saucepan, melt butter over medium heat. Add flour and whisk for 1 minute.
  • Slowly pour in milk, whisking until smooth. Continue whisking and cook until sauce thickens, about 5 minutes.
  • Stir salt, black pepper, and Italian seasoning into the sauce. Remove from heat.
  • Spread a thin layer of sauce on the bottom of the prepared baking dish.
  • Place 3 cooked lasagna noodles over the sauce.
  • Spread one-third of the chicken and spinach mixture over the noodles.
  • Spoon some sauce over the chicken mixture and sprinkle with mozzarella and parmesan.
  • Repeat layers two more times, finishing with remaining sauce and cheese on top.
  • Cover dish loosely with foil and bake for 30 minutes.
  • Remove foil and bake another 15 minutes, until cheese is melted and lightly golden.
  • Let rest for 10 minutes before slicing and serving.

Notes

Tips and Tricks

Layering: Make sure to spread the sauce and filling to the edges for even coverage.
Resting Time: Letting the lasagna rest before slicing helps it set.
Meal Prep: Assemble ahead and refrigerate, then bake when ready.

Storing and Reheating

Store - Store leftovers in an airtight container in the refrigerator for up to 4 days. Freeze individual slices for up to 2 months.
Reheat on Stovetop - Place a serving in a saucepan with 1 to 2 tablespoons water. Warm over low heat, stirring until creamy.

Nutrition

Calories: 440kcalCarbohydrates: 40gProtein: 33gFat: 16gSaturated Fat: 8gPolyunsaturated Fat: 1gMonounsaturated Fat: 5gTrans Fat: 0.2gCholesterol: 79mgSodium: 589mgPotassium: 443mgFiber: 2gSugar: 5gVitamin A: 1427IUVitamin C: 3mgCalcium: 423mgIron: 2mg
Tried this recipe? Let us know what you think!Mention @nestinglane or tag #nestinglane