This dish combines tender, lean chicken with the sweet richness of caramelized onions and a bubbly, golden cheese topping, creating a truly satisfying and flavorful meal.
Start by preheating your oven to 400°F (200°C). Lightly spray a casserole dish with oil to prevent sticking.
Gently pound the chicken breasts until they are slightly thinner for even cooking. Season them well on both sides with garlic powder, onion powder, oregano, chili pepper flakes, a little salt, and black pepper. Remember to go easy on the salt, as other ingredients will add their own seasoning. Place the seasoned chicken breasts into your prepared casserole dish.
Place a skillet over medium-high heat. Add the unsalted butter and let it melt. Add the thinly sliced onions to the skillet and cook them, stirring occasionally, until they become wonderfully caramelized and tender. As the pan starts to dry, pour in the chicken broth to deglaze and prevent burning, continuing to stir until the onions are beautifully browned.
Finally, stir in the minced garlic and cook for just about 30 seconds until it becomes fragrant. Remove the skillet from the heat and let the onion mixture cool for about 5 minutes.
Spoon the delicious caramelized onions evenly over each chicken breast in the casserole dish, covering them completely. Sprinkle generously with the shredded mozzarella cheese. Bake in the preheated oven for 20-25 minutes, or until the cheese is bubbly and golden, and the chicken breasts are thoroughly cooked through.
For an extra golden crust, broil for an additional 2 minutes until the cheese is slightly browned.
Carefully remove from the oven. Garnish with fresh chopped parsley before serving this delightful dish!
Notes
Nutrition Information (per serving): Calories: 534 kcal, Total Carbs: 30 g (Net Carbs: 24.8 g), Fats: 21 g, Protein: 55 g.