Cook the Noodles: Cook the egg noodles according to the package instructions until al dente. Drain and set aside.
Prepare the Vegetables: In a large skillet, melt the butter over medium heat. Add the onion, carrots, and celery. Cook for about 5 minutes, until the vegetables are tender. Add the garlic and cook for an additional 1 minute.
Make the Sauce: Sprinkle the flour over the vegetables and cook, stirring constantly, for about 2 minutes. Gradually whisk in the chicken broth and milk. Cook until the mixture thickens and starts to bubble.
Combine Ingredients: Stir in the shredded chicken, frozen peas, salt, black pepper, thyme, and rosemary. Cook until the chicken is heated through and the peas are tender.
Add Noodles: Add the cooked noodles to the skillet and stir to combine. Make sure the noodles are well coated with the creamy sauce.
Add Topping: In a small mixing bowl, combine the grated Parmesan cheese and breadcrumbs. Sprinkle the mixture evenly over the top of the skillet.
Broil: Place the skillet under the broiler for about 2-3 minutes, or until the topping is golden and crispy.
Serve: Let the skillet cool for a few minutes before serving.
Prep Time: