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A close-up spoonful of creamy chicken casserole with biscuits, showing the texture of the chicken, peas, and carrots in the sauce.

Chicken Biscuit Casserole (The Ultimate Comfort Food)

This Chicken Biscuit Casserole is the ultimate comfort food! A creamy, savory chicken and vegetable filling is topped with golden, flaky biscuits for an easy, family-friendly dinner that's ready in under an hour.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 8 people
Course: Dinner, Main Course
Cuisine: American
Calories: 485
Ingredients Equipment Method Notes

Ingredients
  

  • 4 tbsp unsalted butter divided
  • 1 cup chopped yellow onion
  • 2 cloves garlic minced
  • 1/4 cup all-purpose flour
  • 1 1/2 cups chicken broth
  • 1 cup whole milk
  • 3 cups shredded cooked chicken from a rotisserie chicken or leftovers
  • 1 1/2 cups frozen peas and carrots
  • 1 cup shredded sharp cheddar cheese
  • 1 tsp dried thyme
  • 1/2 tsp salt or to taste
  • 1/4 tsp black pepper or to taste
  • 1 can (16.3 oz) refrigerated buttermilk biscuits 8 biscuits
  • 2 tbsp unsalted butter melted
  • 1/2 tsp garlic powder

Equipment

  • 1 9x13 inch Baking Dish
  • 1 Large skillet or Dutch oven

Instructions
 

  1. Preheat oven to 375°F (190°C). Grease a 9x13-inch baking dish.
  2. In a large skillet, melt 4 tbsp of butter over medium heat. Add the onion and cook until softened, about 5 minutes. Stir in the garlic and cook for 1 minute more.
  3. Sprinkle the flour over the onions and cook, stirring constantly, for 1 minute. Gradually whisk in the chicken broth and milk until smooth. Bring to a simmer and cook until thickened, about 2-3 minutes.
  4. Remove from heat. Stir in the shredded chicken, frozen peas and carrots, cheddar cheese, thyme, salt, and pepper.
  5. Pour the mixture into the prepared baking dish. Separate the biscuits and arrange them on top of the filling.
  6. In a small bowl, combine the 2 tbsp melted butter and garlic powder. Brush over the biscuits. Bake for 25-30 minutes, until the filling is bubbly and the biscuits are golden brown.
  7. Let the casserole rest for 5-10 minutes before serving to allow the sauce to set.

Notes

Tip 1: For the best flavor and texture, use freshly grated sharp cheddar cheese.
Tip 2: A store-bought rotisserie chicken is a huge time-saver for this recipe.
Tip 3: Ensure the biscuits are cooked through by testing one with a toothpick; it should come out clean.
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