Baked Chicken Spaghetti – This flavor-packed, cheesy, soul-satisfying recipe boasts everything you could ever want in a casserole. Cheese, chicken, and pasta create a super easy midweek dinner. And talk about the ultimate comfort food! 🥰
I’m a big fan of any casserole, so trust me when I say this baked chicken spaghetti recipe is on another level. Loads of cheese, shredded chicken, and spaghetti cooked in a silky-smooth sauce for a unique baked dish that is always a huge hit.
It might seem like this recipe has a lot going on, but each ingredient adds flavor and texture without overpowering the dish. It’s that casserole magic, my friend. ✨Perfect for a weeknight meal or as a gift for a friend in need, this is one of those recipes you’ll find yourself going back to time and time again.
Is Baked Chicken Spaghetti Easy to Make?
Yes, it is! Don’t let the ingredient list scare you because it’s not complicated at all. Anyone can make this great, even if you barely spend any time in the kitchen. You’re good to go with a few easy cooking techniques (cooking pasta, sautéing veggies, making the sauce) and then combining the ingredients in a dish to bake. You’ve got this one! 🙌
Recipe Ingredients
- Chicken – I used boneless chicken breast for this recipe, but you can use just about any kind of chicken you have on hand. Shred rotisserie or leftover chicken, or pop open a can of chicken meat. All of these options will work.
- Pasta – Thin spaghetti is my pasta of choice for this recipe, but honestly, any kind of pasta will work!
- Vegetables – Onion, garlic, bell pepper, and a can of tomatoes add some extra nutrition, not to mention flavor and texture, to this recipe.
- Herbs – Fresh thyme and parsley add new flavor dimensions and a pop of color.
- Sauce ingredients – Chicken broth, evaporated milk, and a little bit of flour makes for a creamy sauce to coat the pasta and chicken.
- Cheese – Last but not least, the cheeses! Cheddar, parmesan, and Monterey jack cheeses make this casserole absolutely mouthwatering.
How to Bake Chicken Spaghetti
Prep the Main Ingredients
- Spaghetti – Boil the spaghetti in a large pot, according to box instructions. Drain and set aside.
- Season and Sear Chicken – Season the chicken with salt and pepper. Heat up a Dutch oven or skillet over medium-high heat. Add about 1 tablespoon of oil to the pot or pan. Next, add the chicken, cooking it for about 5-6 minutes on each side or until it is cooked through. Remove from the pan and set aside. (Photos 1-3)
- Veggies – Heat butter or oil in a skillet or pot over medium heat. Then, add onions, garlic, thyme, and Creole seasoning. Cook, stirring frequently, for about 3-4 minutes, until the onions wilt. Throw in the tomatoes and bell pepper and continue cooking for about 2-3 minutes. (Photos 4-5)
- The Roux – Next, stir in the flour until it soaks up all the butter or oil, about a minute. (Photos 6-7)
- Sauce – Gradually stir in the evaporated milk and broth. Bring it to a boil, stirring constantly for about 2 minutes or until it thickens and bubbles. (Photo 8)
- Add Cheese – Finally, add all the cheese and stir until everything’s melted and evenly combined and smooth. Add salt and pepper to taste. (Photos 9-10)
Assemble and Bake
- Mix Spaghetti and Chicken – Add the spaghetti and chicken to the skillet, stirring until everything is evenly coated in the sauce. (Photos 11-12)
- Assemble – Transfer the spaghetti mixture into a pan or into a lightly greased 2-qt. baking dish and top with the remaining cheese. (Photos 13-14)
- Bake at 350 Degrees Fahrenheit for 20 minutes or until golden and bubbly. (Photo 15)
Recipe Variations
- Add a crunchy breadcrumb topping by sprinkling butter-sauteed breadcrumbs on top before you bake. Simply put 2 tablespoons of butter in a small skillet on medium heat. Add 1 teaspoon of minced garlic and sauté for a minute or so before adding the breadcrumbs to the pan. Sauté the breadcrumbs for 3-4 minutes or until they are toasty and fragrant. Salt and pepper to taste, and then sprinkle it over the casserole. This extra step takes a little time but it makes the recipe extra special.
- Use whole wheat spaghetti for a slightly healthier take on this recipe. Boil it until it’s al dente, just like regular pasta.
- Try different cheeses and veggies. Feel free to get creative with the veggies and cheeses. You can add or substitute recipe ingredients. Try chopped zucchini, diced broccoli, Colby, Jack, Gruyere, or anything else that sounds good to you.
Tips and Tricks
- My number one tip for this recipe is this: don’t overcook the pasta. Make it just al dente. That way, it still has some bite to it after coming out of the oven. Remember, friends don’t let friends eat soggy pasta. 😂
- For the ultimate gooey, melty sauce, skip the pre-shredded cheeses and shred your own from blocks of cheese. Trust me, the ROI on this one is totally worth it.
- If you are just cooking for two, you can divide your ingredients between two smaller baking dishes, bake one now and pop the other in the freezer to bake later. Yay for make-ahead meals! Speaking of which…
Make-Ahead Instructions
You can literally store this casserole, unbaked, in the freezer in an airtight container for up to three months. Simply thaw it out in the fridge the night before you’ll use it and allow it to reach room temperature before you bake it the day of.
Serving and Storage Instructions
Serve this casserole hot out of the oven! It’s best when the cheese and sauce are still gloriously melty. Garnish it with chopped parsley and some red pepper flakes if you dare.
Store leftover chicken spaghetti in an airtight container in the fridge. They should keep for 3-5 days. To reheat leftovers, pop the casserole back in the oven on a low heat setting for 15-20 minutes. You can also just microwave it, which is my reheating method of choice for this recipe.
FAQs
Italians may cringe, but I think breaking the pasta in half, or even thirds, makes this casserole much easier to eat. Go for it if your inner Italian will allow you.
Make sure you use plenty of water, and the water is boiling before adding the pasta. Once it goes in, stir frequently. After it’s cooked, rinse it with cold water, but only if you aren’t adding it to the sauce immediately.
It’s all about the sauce-to-dry ingredient ratio for this one. Follow the recipe amounts carefully to get a creamy, saucy bake. If you add extra pasta or chicken, your casserole might come out dry. Another tip is to not overbake. Remember that all the ingredients are fully cooked when they hit the oven, so you don’t need more than a 20-minute bake to attain golden, bubbly perfection. Bake longer than that, and you risk drying out your casserole.
What Goes With Baked Chicken Spaghetti
I like to serve this dish with traditional spaghetti sides. Homemade garlic bread and a wedge salad are my go-to sides.
You could certainly get creative, though. Try it with bacon broccoli salad, sweet potato salad, or pea salad on the side. Anything fresh and crunchy is going to balance well with the rich, creamy cheese sauce. 😋
More Hearty Casserole Recipes to Try
- Chicken and Rice Casserole
- Loaded Mashed Potato Casserole
- Cabbage Roll Casserole
- Fiesta Chicken Casserole
- Cheesy Hashbrown Casserole
- Ground Beef Casserole
Conclusion
Get ready to try your new favorite comfort food. I already know your family is going to love this one. Already tried it? Let me know your best tips and tricks for a perfect baked chicken casserole in the comment section below. I can’t wait to hear from you. 🫶
Watch How to Make It
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This blog post was originally published in December 2018 and has been updated with additional tips, new photos, and a video.
Sara says
Imma! I have this baking in the oven right now. Having made several of your other recipes, I have no doubt that it will be fantastic. Question: how much cheese should be reserved for the topping?
ImmaculateBites says
Hi Sara, So sorry for the late response . About a 1/4 -1/3 of the cheese . Adjust with more if you want a gooey topping .
Lily says
Absolutely love this
Imma says
Thank you so much, Lily. I am glad to have you hear, browse the blog and enjoy more recipe:)
ImmaculateBites says
Its 1 and 1/2 cup chicken broth.
ImmaculateBites says
Hi Kim,
It’s been updated . Bake at 350 degrees. You add the chicken together with spaghetti. Thanks for bringing this to my attention.
Carole says
Really excellent! Great mix of flavors and textures. I would suggest making it in a larger casserole dish rather than the 2 quart you suggested. I thought it looked like it needed a bigger dish so used a 3 quart and it still came up to the top of the dish! We have lots of yummy leftovers! My husband just announced it was his favorite meal in a long time!
imma africanbites says
Thanks for sharing, Carole, and for taking the the time to let me know. Happy New Year to you an your family!
Michelle Mora says
Good day Imma.
I made this for Sunday lunch, awesome delicious ,moist, tasty . My family totally loved it.
Thank you very much.
Best Regards
Michelle
Kay says
So excited to make this this weekend! I find that at my grocery store I have a hard time finding pure Monterrey jack. They do have a mix of mild cheddar and Monterrey jack, do you think that would work okay?
P.S. I have made SO many of your recipes and they are all a hit, my favorite are the oxtails and the jerk chicken.
ImmaculateBites says
Hi Kay,
So sorry, I somehow missed this. It would be just fine. So happy to hear the recipes are working out well for you.
ESTHER RAWLINS says
This dish looks really good. I will be making it except that I will be omitting the chicken. Iโm vegetarian.
imma africanbites says
You can also do that, Esther. Thanks for dropping by.
Elena says
Hello, first of all I just discovered this site last night and I am in love with it already!! I am planning on making the 1 skillet Jerk Chicken & Rice & Peas (using Gunjo Peas instead of Red Kidney) dish tomorrow since my 13 year old will be gone with his cousins to DC.
I am thinking about making this meal tonight. I just want to clarify something though. I plan to use a cooked rotisserie chicken (because I already placed the whole chicken in my rotisserie this morning) I should skip step 5 entirely correct, as my chicken will already be cooked. I think this looks absolutely divine and you cant go wrong with cheese, lol!!!
ImmaculateBites says
Hello Elena,
So happy to have you on board . Yes it is correct you can start cooking from step 6. Do let me know how it works for you.Thanks!
Elena says
Thank you Imma!! I am going to go ahead and run to the grocery store to grab some more cheese and a yellow pepper. I will report back after dinner and le you know how it turns out!!
Elena
Elena says
Imma, Imma, IMMA!!!!!!
Thank you sooooo much, this was a complete hit with both the 14 year old and the 51 year old!!!! The young man asked if I could warm it up and put it in a thermos to stay hot so he could take it with him on his field trip tomorrow to DC (they have to bring their own lunch)He was disappointed when I said no because I had already packed his requested lunch and then made my husband swear he wouldn’t eat the rest because he was planning to eat it when he gets back from his field trip, lol!! The only adjustment I made to this was instead of 3/4 cups of parm I used a 1/4 cup mixed with the bread crumbs for the topping (I use this on chicken & turkey tetrazzini) and I added 1/2 Fontina cheese in the spaghetti. I will be adding this to the monthly rotation. Also I feel like this would freeze very nicely for meal to pull out to thaw night before and pop in he oven next day!! I cant wait to make this One Pot Jerk & Rice tomorrow!! Thanks again for sharing!!!
Elena
Imma says
Thank you so much, Elena, I am super excited to read your comment. Stay tuned to have more amazing recipes:)