Instructions:
Preheat the Oven
- Preheat your oven to 350°F (175°C).
- Grease a 9×13-inch baking dish and set it aside.
Prepare the Chicken
- Season the chicken breasts with salt and pepper on both sides.
- In a large skillet, heat olive oil over medium-high heat.
- Add the chicken breasts and cook until golden brown on both sides, about 4-5 minutes per side.
- Remove the chicken from the skillet and set aside.
Sauté the Vegetables
- In the same skillet, add diced onion, minced garlic, diced bell pepper, and sliced mushrooms.
- Sauté until the vegetables are softened and fragrant, about 5-7 minutes.
Assemble the Casserole
- In a large mixing bowl, combine the sautéed vegetables, frozen peas, frozen corn kernels, cream of chicken soup, chicken broth, sour cream, and shredded cheddar cheese.
- Mix until well combined.
- Pour the mixture into the prepared baking dish, spreading it out evenly.
- Place the cooked chicken breasts on top of the vegetable mixture in the baking dish.
Prepare the Topping
- In a separate bowl, combine the crushed butter crackers and melted butter.
- Mix until the crackers are coated evenly with butter.
- Sprinkle the buttered cracker mixture over the top of the chicken and vegetable mixture in the baking dish.
Bake the Casserole
- Transfer the baking dish to the preheated oven and bake for 25-30 minutes, or until the casserole is bubbly and the topping is golden brown.
Serve and Enjoy
- Remove the casserole from the oven and let it cool for a few minutes before serving.
- Garnish with chopped fresh parsley, if desired, for a pop of color and freshness.