In a large skillet, heat the olive oil over medium-high heat. Season the chicken thighs with salt, pepper, garlic powder, onion powder, and dried thyme.
Add the seasoned chicken to the skillet and cook for about 5-7 minutes on each side until golden brown and cooked through. Once done, remove the chicken from the skillet and set aside.
In the same skillet, pour in the chicken broth, scraping any browned bits from the bottom to add flavor. Bring to a simmer.
Once simmering, add the egg noodles and stir to combine. Cook for about 8-10 minutes or until the noodles are tender and most of the broth has absorbed.
Lower the heat and stir in the heavy cream and Parmesan cheese until the noodles are coated and creamy. Add the butter and mix until melted and well incorporated.
Slice the cooked chicken thighs and place them back in the skillet, gently mixing them with the creamy noodles.
Allow everything to heat through for 2-3 minutes, then taste and adjust seasoning if necessary.