When it comes to comfort food, casseroles will always have my heart! This Cheesy Broccoli Chicken Spaghetti Casserole is no exception! It's creamy, loaded with cheese, and packed with tender chicken and fresh broccoli, all twirled together with spaghetti.
This is the kind of easy, family-friendly dinner that will have everyone running to the table.
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What makes this recipe irresistible
This casserole is everything you love about cozy pasta dinners wrapped up in one pan! It's hearty enough to feed a crowd, but simple enough for weeknights thanks to a rotisserie chicken shortcut. It's creamy, cheesy, and downright cozy.
This is the kind of casserole that disappears fast-and might just earn a regular spot on your dinner rotation!
Ingredients
Please refer to the printable recipe card below for the exact measurements for this recipe.
Cheesy Broccoli Chicken Spaghetti Casserole
Ingredients
- 1 pound spaghetti broken in half
- 4 cups fresh broccoli florets
- 3 cups rotisserie chicken shredded
- 21 ounces cream of chicken soup (or cream of mushroom) that's 2 cans
- 12 ounces evaporated milk
- 6 ounces cream cheese softened and cubed
- 1 ½ teaspoons Dijon mustard
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- ½ teaspoon black pepper
- 1 ½ cups shredded pepper jack cheese
- 3 cups shredded sharp cheddar cheese divided
- 1-2 cups reserved pasta water as needed
Instructions
- Preheat oven to 350°F. Lightly grease a 9x13-inch baking dish.
- Bring a large pot of salted water to a boil. Add spaghetti and cook until about 2 minutes shy of al dente. During the last minute, add the broccoli florets to the pot. Drain, reserving 2 cups of pasta water.
- In a large saucepan, combine the soup, evaporated milk, and cream cheese over medium heat. Stir until smooth and creamy.
- Add 2 ½ cups cheddar cheese, all of the Pepper Jack, Dijon, garlic powder, onion powder, black pepper, and red pepper flakes. Stir until the cheese melts into a smooth sauce. Whisk in 1 cup of the pasta water ½ cup at a time. I ended up using 1 ½ cups of pasta water.
- In a very large mixing bowl or pot, combine spaghetti, broccoli, chicken, and cheese sauce. Toss until everything is well coated. The pasta should be very saucy.
- Transfer to the prepared baking dish. Top with the remaining ½ cup cheddar.
- Bake uncovered for 30 minutes, until bubbly and golden on top. If desired, place the casserole under the broiler for 2-3 minutes so the top is golden brown. Allow to rest 10 minutes before serving so it sets slightly. Enjoy!
Notes
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Nutrition
Frequently asked questions (FAQ's)
Yes! Thaw it and pat it dry so it doesn't add extra water to the casserole.
Absolutely! Assemble the casserole, cover tightly, and refrigerate for up to 24 hours. Bake as directed, adding an extra 10-15 minutes since it will be cold from the fridge.
Yes, assemble in a freezer-safe dish (without baking), cover tightly, and freeze up to 3 months. Thaw overnight in the fridge before baking. It may need a little more time in the oven to bake completely. Adjust cooking time accordingly.
Deb's top tips
Using the reserved pasta water (instead of additional evaporated milk) will ensure every strand of spaghetti is coated in the creamy cheesy sauce. Pasta water is starchy and seasoned, and just a splash can loosen up the sauce if it feels too thick.
Related recipes
If casseroles are calling your name, try my Cattle Drive Casserole, a reader favorite that's loaded with beef and Tex-Mex flavor. Or keep the cozy pasta vibes going with Chicken Spaghetti with RoTel, a southern classic!
For a veggie-forward option, my Chicken Broccoli Rice Casserole is another cheesy delicious dish!
Serving suggestions
This casserole is a hearty, family-style meal that pairs beautifully with simple sides. Serve it with a crisp green salad or roasted vegetables to balance the rich, creamy sauce. Warm dinner rolls or garlic bread are perfect for soaking up every bit of cheesy goodness. For a cozy touch, add a side of fruit salad or applesauce to keep things fresh and homey.
And if you're feeding a crowd, this casserole holds its own on a buffet table. Just slice it into squares and watch it disappear!
Wrapping it up
This Cheesy Broccoli Chicken Spaghetti Casserole is comfort food at its finest - cheesy, creamy, and oh-so satisfying! Make it once, and I have a feeling it'll land on your regular dinner rotation!
Give it a try this week and let me know what your crew thinks. I can't wait to hear what you think, please leave a comment below.
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