Melt the butter in a deep skillet over medium heat.
Stir in the Italian seasoning and then the chicken.
Saute for 4 to 6 minutes, until the chicken is slightly browned.
Add the potatoes, green beans, and water/broth. Stir well.
Cover with a tight-fitting lid and turn the burner to medium-low.
Allow it to cook 15-20 minutes Time will vary depending on the cut of your potatoes. Test with a fork for doneness.
Use a large ladle to carefully remove the chicken and vegetables.
Mix the gravy packet with 2 to 3 tablespoons of additional cold water. Pour into the seasoned mixture in the skillet and whisk until well combined.
Pour over chicken and potatoes and toss to coat.
Season with salt and pepper as desired to serve.