Cook the egg noodles according to package instructions, then drain and set aside.
In a large skillet, melt butter over medium heat and sauté the diced onion until soft.
Add the garlic, peas, and carrots, seasoning with salt and pepper. Cook for 2 minutes.
Sprinkle flour over the veggies and stir well, cooking for another minute to remove the raw taste.
Slowly pour in the chicken broth and heavy cream, stirring constantly until the sauce thickens.
Add the cooked chicken and mix well, letting it simmer for 3-4 minutes.
Stir in the drained egg noodles, tossing gently to coat them in the creamy sauce.
Serve hot and enjoy your comforting, one-pan Chicken Pot Pie Noodle Skillet!