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creamy cheesy chicken casserole

Creamy Cheesy Chicken Green Bean Casserole

If you’re searching for a comforting dinner that combines protein, veggies, and creamy goodness in one dish, this casserole is about to become your new favorite. Tender chicken, crisp green beans, and a rich, cheesy sauce come together harmoniously, enhanced by sautéed celery and onions. Its simplicity and adaptable ingredients make it a perfect weeknight meal that everyone will enjoy.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 4 servings
Course: Main Course
Cuisine: American
Calories: 485
Ingredients Equipment Method Notes

Ingredients
  

Ingredients
  • 1 1/2 cups fresh cut French style green beans
  • 1 tablespoon salted butter
  • 2 celery ribs, raw (chopped)
  • 1 medium yellow onion (diced)
  • 1/2 cup light mayonnaise
  • 1/4 cup evaporated milk (2%)
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon garlic powder
  • 8 ounces fancy shredded mild cheddar cheese
  • 2 cups diced chicken breasts pre-cooked or use leftover rotisserie chicken

Equipment

  • Skillet
  • 2½-3 quart casserole dish
  • Mixing bowl
  • Whisk

Method
 

  1. Heat a skillet over medium heat and melt 1 tablespoon of salted butter. Add the chopped celery and diced onion, sautéing until they turn golden and aromatic.
  2. Transfer the sautéed celery and onions to a 2½-3 quart casserole dish and add 1 1/2 cups of fresh cut green beans.
  3. In a separate bowl, whisk together 1/2 cup light mayonnaise, 1/4 cup evaporated milk, 1/2 teaspoon black pepper, and 1/4 teaspoon garlic powder until smooth. Pour this creamy mixture over the vegetables in the casserole dish and stir to coat evenly.
  4. Fold in 8 ounces of shredded mild cheddar cheese and 2 cups of diced chicken breasts, ensuring all ingredients are well incorporated.
  5. Place the casserole in a preheated 350°F oven and bake uncovered for 30-40 minutes, or microwave on MEDIUM for 20-30 minutes (stirring occasionally) until the top is bubbly and beautifully browned.
  6. Allow the casserole to rest for about 5 minutes before serving to let the flavors meld.

Notes

This comforting casserole is ideal for weeknight meals, bringing together the creaminess of a cheesy sauce with the fresh crunch of green beans and tender chicken. You can easily swap in rotisserie chicken or even Greek yogurt instead of light mayonnaise for a different twist. The recipe is very forgiving, allowing you to experiment with various cheeses and additional veggies such as mushrooms or corn. Serve it alongside a crisp salad or warm crusty bread for a complete meal.