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Dump-and-Bake Cajun Chicken Pasta

This Dump-and-Bake Cajun Chicken Pasta Recipe is the ultimate weeknight dinner dream — creamy, bold, and bursting with Cajun flavor, all made in one dish with no pre-boiling or sautéing required. Just mix everything together, bake, and enjoy a rich, spicy pasta loaded with juicy chicken, tender noodles, and melty cheese. Perfect for busy nights, family dinners, or meal prep that tastes straight out of a restaurant kitchen.
Prep Time10 minutes
Cook Time40 minutes
Total Time50 minutes
Servings: 6

Ingredients

  • 1 16 oz package uncooked rotini pasta
  • 1 22 oz jar Alfredo sauce (about 2 ½ cups)
  • 3 cups low-sodium chicken broth
  • 2 cups diced rotisserie chicken or other cooked chicken
  • 1 15 oz can petite diced tomatoes, not drained
  • 1 red bell pepper seeded and diced
  • 1 green bell pepper seeded and diced
  • 1 cup finely chopped onion fresh or frozen
  • 1 tablespoon Cajun or Creole seasoning
  • 2 teaspoons minced garlic
  • 1 cup shredded mozzarella or cheddar cheese
  • Optional: fresh parsley or sliced green onions for garnish

Instructions

Preheat the Oven:

  • Preheat your oven to 425°F (220°C) and lightly grease a large 9x13-inch baking dish.

Combine Ingredients:

  • In the baking dish, add uncooked pasta, Alfredo sauce, chicken broth, chicken, diced tomatoes (with liquid), bell peppers, onion, garlic, and Cajun seasoning. Stir everything well to coat the pasta evenly.

Bake Covered:

  • Cover tightly with foil and bake for 35 minutes, stirring once halfway through to ensure even cooking.

Add Cheese:

  • Remove foil, sprinkle the top with shredded mozzarella or cheddar cheese, and bake uncovered for another 5–10 minutes, until cheese is melted and bubbly.

Serve:

  • Let cool slightly before serving. Garnish with chopped parsley or green onions for a fresh finish.

Notes

  • Adjust spice level by increasing or reducing Cajun seasoning.
  • Add a squeeze of fresh lemon juice before serving to brighten the flavors.
  • For a smokier kick, mix in a bit of smoked paprika.
  • Substitute cooked shrimp or sausage for a fun twist.
  • Store leftovers in an airtight container for up to 3 days; reheat gently with a splash of broth.