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Creamy Baked Chicken Broccoli Pasta Casserole: A Comfort Food Classic

  • Author: Chef Mia
  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
  • Total Time: 55 minutes
  • Yield: 6 servings 1x
  • Method: Main Course
  • Cuisine: American

Description

This creamy baked chicken broccoli pasta casserole is the ultimate comfort food, featuring tender chicken, al dente pasta, and vibrant broccoli all enveloped in a rich, cheesy sauce. Perfect for weeknight dinners or family gatherings.


Ingredients

Scale
  • 12 oz (340g) rotini or penne pasta
  • 2 cups cooked chicken breast, shredded or cubed
  • 3 cups fresh broccoli florets
  • 1 tbsp olive oil
  • 1 small onion, finely chopped
  • 3 cloves garlic, minced
  • 3 tbsp all-purpose flour
  • 2 cups whole milk
  • 1 cup chicken broth
  • 1 tsp Dijon mustard
  • 1/2 tsp garlic powder
  • 1/2 tsp onion powder
  • Salt and black pepper to taste
  • 1 1/2 cups shredded sharp cheddar cheese
  • 1/2 cup grated Parmesan cheese
  • 1/2 cup sour cream
  • 1/2 cup panko breadcrumbs (for topping)
  • 2 tbsp unsalted butter, melted (for topping)
  • Fresh parsley, chopped (for garnish)

Instructions

  1. Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish.
  2. Cook the pasta according to package instructions until al dente. Add broccoli florets during the last 3 minutes of cooking. Drain well and set aside.
  3. In a large skillet, heat olive oil over medium heat. Add onion and garlic, cook until softened, about 3-4 minutes.
  4. Sprinkle flour over the onion mixture and stir to coat. Cook for 1-2 minutes, stirring constantly.
  5. Gradually whisk in milk and chicken broth. Continue to cook, stirring frequently, until the mixture thickens, about 5-7 minutes.
  6. Stir in Dijon mustard, garlic powder, onion powder, salt, and pepper.
  7. Reduce heat to low and whisk in cheddar cheese and Parmesan until fully melted and smooth.
  8. Remove from heat and stir in sour cream until well combined.
  9. In a large bowl, combine cooked pasta and broccoli with the shredded chicken. Pour the creamy sauce over the top and toss to coat everything evenly.
  10. Transfer the mixture to the prepared baking dish, spreading it out evenly.
  11. In a small bowl, mix panko breadcrumbs with melted butter until the crumbs are coated. Sprinkle over the casserole.
  12. Bake in the preheated oven for 20-25 minutes, until bubbly and golden brown on top.
  13. Let rest for 5 minutes, garnish with chopped parsley, and serve warm.

Notes

To make it a one-dish meal, add some cooked bacon or mushrooms. Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave.


Nutrition

  • Calories: 680 kcal
  • Sugar: 8 g
  • Fat: 32 g
  • Carbohydrates: 58 g
  • Protein: 38 g