Dinner · Part 2 of 3: Instructions
Creamy Chicken Spaghetti Lasagna Bake Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 6
Before you start
Before beginning, ensure all ingredients are ready to be assembled. Cook the spaghetti according to the package directions, ensuring it remains firm to the bite.
Shred the chicken if it is not already prepared, and measure out the white sauce and mozzarella cheese.
Preheat the oven to the specified temperature and prepare the baking dish by ensuring it is clean and dry. Having everything organized will make the assembly process efficient and straightforward, allowing for a seamless transition into the baking phase.
Ingredients at a glance (5)
- 2 cups cooked shredded chicken
- 1 lb spaghetti pasta, cooked
- 2 cups creamy white sauce, store-bought or made ahead
- 2 cups shredded mozzarella cheese
- 1 tbsp fresh parsley flakes
Instructions
Mixing the base
- Combine the basePreheat the oven to 375°F (190°C). In a large mixing bowl, combine the cooked shredded chicken with the cooked spaghetti and the velvety creamy white sauce. Toss the ingredients gently until the pasta and chicken are thoroughly coated in the sauce, ensuring an even distribution of flavor throughout the mixture.Look for The mixture should look uniform and well-coated with the creamy white sauce.Tip Ensure the pasta is cooked al dente to maintain the best texture during baking.
The mixture should be thoroughly combined, with the creamy white sauce evenly coating every strand of spaghetti and piece of chicken. The texture should be thick and cohesive, indicating that the ratios are correct and the dish is ready for the baking dish.
Assembling the casserole
- Assemble the casseroleTransfer the chicken and pasta mixture into a 9x13 inch glass baking dish. Spread it out evenly using a spatula to create a flat surface. Top the mixture with the shredded mozzarella cheese, spreading it evenly to cover the pasta and chicken completely for a thorough melt.Look for The cheese should form a thick, even layer covering the entire surface of the pasta mixture.Tip Using freshly shredded cheese often results in a better melt and superior pull.
The pasta mixture should be spread into a uniform layer within the baking dish, and the mozzarella cheese should be distributed evenly over the top. This ensures that the cheese melts consistently and covers the entire surface for a beautiful, uniform finish.
Baking and browning
- Bake and brownPlace the baking dish in the preheated oven and bake for 20 minutes. Switch the oven to broil for the final 2 to 3 minutes, watching closely until the cheese is bubbling and golden brown. Ensure the chicken reaches an internal temperature of 165°F (74°C). Remove from the oven, garnish with parsley, and let rest for 5 minutes before serving.Look for The cheese should be golden brown, bubbling across the top, and the edges should be slightly crispy.Safe temperature 165°F (74°C) internal temperature (poultry)Tip Keep a close eye during the broiling step, as cheese can burn quickly under direct heat.
At the end of this phase, the casserole should be piping hot throughout, with the cheese forming a bubbling, golden-brown crust. The aroma should be savory and inviting, and the chicken must be fully cooked to the required internal temperature.
Common mistakes
Avoid overcooking the pasta before it goes into the oven, as it will continue to soften while baking. Another common error is failing to spread the ingredients evenly, which can lead to uneven cooking and cold spots in the center of the dish.
Finally, do not leave the dish unattended during the broiling step, as the high heat can quickly turn a beautiful golden crust into a burnt one.
How to tell it’s done
The casserole is done when it is heated through and the top is golden brown. Use a digital thermometer to ensure the chicken, which is the main protein, has reached an internal temperature of 165°F (74°C).
The cheese should be bubbling vigorously and show a deep golden color across the surface, indicating it is perfectly melted and slightly toasted for the best texture and flavor.
- Poultry: 165°F (74°C) in the thickest part
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)