Be prepared to be amazed! Killer Chicken Lasagna is scary good! Loaded with layers of bouncy noodles, a creamy, cheesy filling, a fresh spinach sauce, and juicy chicken, the red-sauced-kind might not ever make it back to your kitchen because this one is just so delicious. Everyone will be screaming for Killer Chicken Lasagna! It really adds a thrill to dinnertime!


  • 1 tablespoon olive oil
  • 1 medium onion, finely chopped
  • 4 tablespoons unsalted butter
  • 1/3 cup all-purpose flour
  • 2 1/2 cups chicken broth
  • 1 1/2 cups half-and-half
  • 2 teaspoons sea salt
  • 1/2 teaspoon black pepper
  • 3 cloves garlic, minced
  • 5 ounces fresh spinach, coarsely chopped
  • 1 (15-ounce) container ricotta cheese
  • 1 large egg
  • 3 cups mozzarella cheese, divided
  • 1/4 cup parmesan cheese
  • 1/4 cup parsley, chopped
  • 9 lasagna noodles, cooked to al dente, according to the package directions
  • 4 cups rotisserie chicken, shredded


Step 1 –Preheat the oven to 375 degrees F.

Step 2 –Grease a 9×13-inch baking dish.

Step 3 –In a large saucepan over medium heat, add the olive oil and the onion and sauté until softened, about 3-4 minutes.

Step 4 –Add the butter and the flour and whisk until the flour mixture turns golden, about 3 minutes.

Step 5 –Add the chicken broth, the half-and-half, the salt, and the black pepper the flour mixture and whisk together until smooth.

Step 6 –Reduce the heat and simmer the sauce mixture until thickened to the consistency of a light gravy, about 5 minutes.

Step 7 –Add the garlic and the spinach to the sauce and stir until combined. Transfer the saucepan from the heat.

Step 8 –In a large bowl, add the ricotta cheese, the egg, 2 cups of the mozzarella cheese, the parmesan, and the parsley, and stir.

Also Read:  Frito Chicken Casserole

Step 9 –In the prepared casserole dish, cover the bottom with 1/4 of the spinach sauce.

Step 10 –Add 3 of the lasagna noodles, then top with 1/2 of the ricotta mixture, 1/2 of the chicken, and 1/3 of the remaining spinach sauce.

Step 11 –Repeat the layers once, starting with the lasagna noodles and ending with 1/2 of the remaining spinach sauce.

Step 12 –Top the spinach sauce with the remaining noodles, the remaining spinach sauce, and the remaining mozzarella cheese.

Step 13 –Evenly space apart and insert 12 toothpicks into the top of the lasagna and cover with a large sheet of tin foil.

Step 14 –Bake the lasagna on the center rack, about 45 minutes.

Step 15 –Switch the oven to the broil setting.

Step 16 –Uncover and broil the lasagna until the cheese on top browns, about 2-3 minutes.

Step 17 –Transfer the lasagna from the oven and let it cool, about 10 minutes.

Step 18 –Serve.