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Dinner · Part 2 of 3: Instructions

Creamy Chicken Spaghetti Bake with Bacon Step-by-step instructions

A close-up shot of a fork lifting a creamy, cheesy portion of baked chicken spaghetti topped with bacon bits.
Prep
Cook
Total
Serves
6
Includes 5 min resting

Before you start

Before starting the cooking process, organize all ingredients and equipment. Shred the cooked chicken and prepare the crispy bacon bits. Grate the cheese and chop the fresh herbs. Measure out the spaghetti, creamy pasta sauce, and shredded cheese.

Grease a baking dish and preheat the oven to 375°F (190°C). Having everything prepped and ready ensures a smooth, seamless transition between mixing the ingredients and assembling the casserole.

Ingredients at a glance (6)
  • 8 oz spaghetti
  • 2 cups cooked shredded chicken
  • 2 cups creamy sauce
  • 1 1/2 cups melted cheese, divided
  • 1/2 cup bacon bits
  • 2 tbsp herbs, chopped

Instructions

Boiling the Pasta

  1. Cook the Pasta
    Cook the spaghetti in a large pot of salted boiling water according to the package directions until just al dente. Drain the pasta thoroughly and set it aside.
    Look for The pasta should be tender but still have a slight bite in the center.
    Tip Do not rinse the pasta after draining, as the natural starches help the sauce cling to it.

The kitchen fills with the comforting aroma of boiling pasta. The spaghetti cooks rapidly, releasing starch into the water. At the end of this phase, the pasta should be slightly firm to the bite, ready to be drained and combined with the other ingredients without becoming mushy.

Mixing the Ingredients

  1. Combine Pasta and Chicken
    In a large bowl or skillet, combine the cooked spaghetti, cooked shredded chicken, and creamy sauce. Toss everything gently until the pasta is fully coated with the rich sauce.
    Look for Every strand of spaghetti should be thoroughly coated in the creamy mixture.
    Tip Use tongs to toss the pasta gently without breaking the strands.

The ingredients transform into a rich, cohesive mixture as the shredded chicken and cooked spaghetti are folded into the creamy pasta sauce.

Every strand of spaghetti is heavily coated in the glossy, luxurious sauce, creating a heavy mixture that is ready for the baking dish. The mixture should look highly saturated and creamy, ensuring the pasta will not dry out during baking.

Baking the Casserole and Adding the Toppings

  1. Assemble and Bake
    Transfer the creamy chicken spaghetti mixture into a greased baking dish, spreading it into an even layer. Sprinkle the melted cheese evenly over the top of the pasta.
    Look for The cheese on top should be melted and bubbling vigorously around the edges.
    Tip Place the baking dish on a baking sheet to catch any potential drips.
  2. Garnish and Serve
    Bake the casserole at 375°F (190°C) for 20 minutes until the cheese is melted and bubbling. Remove from the oven and sprinkle with the bacon bits and chopped herbs before serving.
    Look for The bacon and herbs should adhere to the melted cheese, creating a colorful topping.
    Tip Allowing the casserole to rest makes it much easier to slice and serve.

A glorious transformation occurs in the oven as the cheese topping melts, bubbles, and develops golden-brown spots around the edges. Once removed from the oven, the sprinkle of crispy bacon bits and fresh green herbs adds a vibrant contrast of colors and textures over the bubbling surface. The cheese should be fully melted and slightly elastic when pulled.

Common mistakes

One common mistake is overcooking the spaghetti during the initial boiling stage. Since the pasta will continue to cook and absorb moisture in the oven, boiling it past the al dente stage will result in a mushy, soft casserole.

Another error is baking the dish uncovered for too long, which can dry out the sauce. If the cheese is melting too quickly or browning too fast, cover the dish loosely with foil to retain the moisture and keep the interior saucy.

How to tell it’s done

The casserole is perfectly done when the cheese on top is completely melted, bubbling vigorously around the edges, and starting to develop light golden patches.

Because all the primary ingredients, including the chicken, are already cooked before assembly, the main goal of baking is to heat the interior through and melt the cheese. A kitchen thermometer inserted into the center of the bake should read at least 165°F (74°C) to ensure it is hot throughout.

Coming up in Part 3: common questions

  • Can gluten-free pasta be used in this recipe?
  • How can the sauce be prevented from splitting?
  • Can this casserole be frozen before baking?
  • Is it possible to use cooked turkey instead of chicken?

Also in Part 3: variations (Spicy Cajun Chicken Bake, Spinach and Mushroom Chicken Bake), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 4 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)