Creating Texas Roadhouse Copycat Smothered Chicken is straightforward if you follow these steps:

1. Preheat the Oven: Preheat your oven to 375°F (190°C).
2. Season the Chicken: In a small bowl, mix garlic powder, onion powder, paprika, salt, and pepper. Rub this mixture all over the chicken breasts.
3. Sear the Chicken: In a large skillet, heat olive oil over medium-high heat. Add the seasoned chicken breasts and sear for 4-5 minutes on each side until golden brown. Remove from the skillet and set aside.
4. Sauté the Vegetables: In the same skillet, add the sliced mushrooms and chopped onions. Sauté for 5-7 minutes until they are tender and slightly caramelized.
5. Add Chicken Broth: Pour in the chicken broth and stir to combine, scraping up any browned bits from the bottom of the skillet.
6. Combine Chicken and Vegetables: Return the seared chicken breasts to the skillet, nestling them among the vegetables.
7. Top with Cheese: Sprinkle shredded Monterey Jack and cheddar cheese evenly over the chicken and vegetables.
8. Bake: Transfer the skillet to the preheated oven and bake for 20-25 minutes or until the chicken is cooked through and the cheese is bubbly and golden.
9. Garnish: Remove from the oven and let it rest for a few minutes. Garnish with fresh parsley if desired.

Following these steps will ensure that your Texas Roadhouse Copycat Smothered Chicken turns out perfectly every time.