Follow these easy steps to create your Baked Chicken Stroganoff:

1. Preheat Oven: Begin by preheating your oven to 350°F (175°C).
2. Sauté Vegetables: In a skillet, heat olive oil over medium heat. Sauté the chopped onions and sliced mushrooms until tender, about 5-7 minutes.
3. Prepare Chicken: While the vegetables cook, season the chicken breasts with paprika, garlic powder, onion powder, salt, and pepper.
4. Brown Chicken: In the same skillet, add chicken breasts and brown them on both sides for about 3-4 minutes per side. Remove from heat.
5. Mix the Sauce: In a bowl, combine sour cream, cream of mushroom soup, garlic, and additional salt and pepper to taste. Mix until smooth.
6. Combine Ingredients: In a large baking dish, spread the sautéed vegetables evenly on the bottom. Place browned chicken on top, then pour the sauce mixture over the chicken. Ensure everything is well coated.
7. Bake: Cover the baking dish with aluminum foil and bake in the preheated oven for 30 minutes.
8. Cook Egg Noodles: While the chicken bakes, cook the egg noodles according to package instructions. Drain and set aside.
9. Finish Baking: After 30 minutes, remove the foil and bake for an additional 5-10 minutes, or until the chicken is cooked through and the sauce is bubbly.
10. Serve: Remove from the oven and let rest for a few minutes. Serve the chicken over the egg noodles, garnished with fresh parsley.

These steps will guide you toward creating a comforting and satisfying Baked Chicken Stroganoff that is sure to impress everyone at your table!