Preheat oven to 400°F (200°C).
Heat olive oil in a large oven-safe skillet over medium-high heat.
Add chicken pieces seasoned with garlic powder and pepper; sauté until browned and cooked through (approximately 6-8 minutes).
Stir in the French onion soup, cream of chicken soup, and beef broth until smooth.
Fold in the cooked rice and stir until evenly coated and heated through.
Sprinkle the top with shredded cheese and crispy fried onions.
Transfer the skillet to the oven and bake for 10 minutes until the cheese is melted and bubbling.
Remove from oven and let rest for 2 minutes before serving.