Pat the chicken breasts dry with a paper towel and season generously with salt and black pepper.
1 lb chicken breasts, 1 teaspoon kosher salt, Black pepper to taste
Melt the butter in a large pot, like a Dutch Oven, over medium heat. Add the onion and saute for 2-3 minutes to soften. Sprinkle the flour on top and stir to coat the onions in the flour mixture (roux). Turn the heat down to medium-low and continue to cook for another 3-4 minutes to cook the flour. Add the garlic and cook for another minute.
3 tablespoons unsalted butter, 1 medium yellow onion, 3 tablespoons all-purpose flour, 4-5 cloves minced garlic
Whisk in 6 cups of chicken broth and bring the heat up to medium-high, stirring constantly, to thicken slightly.
6-7 cups low-sodium chicken broth
Add a pinch of red pepper flakes and the Italian seasoning and stir to combine then add the uncooked chicken breasts, making sure the chicken is fully submerged.
Pinch of red pepper flakes, 1 1/2 teaspoons Italian seasoning
Bring the mixture to a boil over high heat then reduce the heat to medium-low and simmer, uncovered, for 6-9 minutes, or until the internal temperature reaches 165°F, or just below, to allow for carryover cooking. the cook time will vary based on how thick the chicken is so keep an eye on it. Carefully remove the cooked chicken to a clean cutting board.
Bring the broth back to a boil over high heat and add the pasta noodles. Cook until they’re al dente, 8-10 minutes.
6 ounces Lasagna noodles
Lower the heat and stir in the spinach, heavy cream, parmesan cheese, mozzarella cheese, and shredded chicken. Stir to combine and to melt the cheese and wilt the spinach. Add up to 1 cup of broth as needed to reach your desired consistency. Taste and season with more salt as needed.
4 cups fresh baby spinach, 1 cup heavy cream, 1 cup shredded low moisture mozzarella cheese, 1/2 cup grated Parmesan cheese, Fresh basil, fresh thyme, ricotta cheese and/or crusty bread for serving