Season chicken with salt, pepper, garlic powder, onion powder, and dried thyme.
Heat olive oil in a large skillet over medium-high heat.
Cook chicken 6-7 minutes per side until golden and internal temp reaches 165°F.
Remove chicken and cover with foil to rest.
Cook egg noodles in boiling salted water until al dente (7-9 minutes).
Reserve 1/2 cup pasta water, then drain noodles.
Melt butter in the skillet over medium heat.
Add minced garlic and sauté 1 minute until fragrant.
Add reserved pasta water or chicken broth, stir scraping browned bits.
Toss noodles in garlic butter sauce, add parmesan if using.
Season with salt and pepper to taste.
Plate noodles and top with sliced or whole chicken.
Garnish with chopped parsley.
Serve immediately while warm.