
Chicken and Spinach Casserole with Cream Cheese is the comforting and creamy answer for those evenings when you want a crowd-pleaser but need something simple enough for a busy weeknight. This meal comes together in one dish so cleanup is easy and the flavor is always a hit with my family. It is rich and savory with tender chicken and a velvety cheese topping that keeps everyone coming back for seconds.
I first tried this casserole when my sister was visiting and needed something gluten free. Now it is a regular in our rotation whenever comfort food is calling.
Ingredients
- Boneless skinless chicken breasts: you want them thick enough to not overcook in the oven but tender and juicy
- Fresh spinach: gives the casserole a lovely green color and a mild earthy flavor try to pick bright crisp leaves
- Cream cheese: needs to be soft so it mixes smoothly opt for full fat for added richness
- Sour cream: helps mellow out the cheese and keeps everything creamy choose a high quality brand for best taste
- Garlic cloves: add a punch of flavor fresh garlic is best for this dish
- Shredded mozzarella cheese: gives perfect melty gooeyness use part skim or whole milk for good stretch
- Salt: brightens every bite
- Black pepper: brings a mild heat and balance choose freshly ground if possible
- Paprika: gives color and a light smokiness Spanish or Hungarian is ideal
- Onion powder: rounds out the savory notes a small amount goes a long way
- Olive oil: for searing the chicken look for extra virgin
Step-by-Step Instructions
- Preheat and Prep:
- Set your oven to three seventy five Fahrenheit and coat your baking dish so the ingredients do not stick. This step ensures even cooking and easy serving later.
- Season and Sear Chicken:
- Sprinkle salt pepper paprika and onion powder over both sides of the chicken. Heat olive oil in a large skillet and sear each breast for about three minutes per side until they just start to brown. Do not worry about fully cooking through as they will finish in the oven. This sear locks in juices and adds deep flavor.
- Make the Cream Cheese Mixture:
- In a mixing bowl combine the softened cream cheese sour cream minced garlic and a pinch of salt. Use a whisk for a super smooth mixture. The cream cheese should not be cold from the fridge so everything blends together well.
- Layer the Casserole:
- First scatter fresh spinach in your baking dish. Place the seared chicken breasts right on top. Spread the cream cheese mixture over the chicken with a spatula so everything is generously coated.
- Top and Bake:
- Evenly sprinkle the shredded mozzarella on top. Transfer the dish to your preheated oven and bake for twenty five to thirty minutes. The cheese should bubble and brown a bit around the edges and the chicken needs to reach a safe internal temperature.
- Rest and Serve:
- Remove the hot casserole from the oven and let it cool for five minutes. This helps everything set so serving is a breeze.

I love how the cream cheese melts into the savory juices from the chicken and spinach. Whenever I make this my kids always fight over the cheesy bits along the edges of the dish.
Storage Tips
Once cooled the casserole keeps well in an airtight container in the fridge for three days. I find the flavors get even better the next day. To reheat scoop portions into a microwave safe bowl or gently warm in a covered oven dish at a low temperature to avoid drying out the chicken.
Ingredient Substitutions
You can swap in turkey cutlets if that is what you have. If you want it lighter try reduced fat cheese and sour cream. Baby kale or a blend of dark leafy greens also works if spinach is unavailable.

Serving Suggestions
This hearty casserole is delicious on its own but you can serve it over steamed rice or fluffy mashed potatoes if you want something extra. A crisp side salad or some roasted vegetables balances the creaminess perfectly.
Cultural or Historical Context
This style of creamy baked chicken dish has roots in classic American comfort food. Generations have relied on casseroles like this for easy big batch meals that bring families together after a busy day.
Frequently Asked Questions
- → Can I use frozen spinach instead of fresh?
Yes, thaw and drain frozen spinach thoroughly to remove excess water before layering it in the dish.
- → Is it possible to substitute another cheese?
Absolutely. Try cheddar or provolone for a different flavor profile, or combine your favorites with mozzarella.
- → How do I know when the chicken is cooked?
The chicken should reach an internal temperature of 165°F (74°C) and juices should run clear.
- → Can I prepare this casserole ahead of time?
Yes, assemble the dish, refrigerate, and bake just before serving for best results.
- → How should leftovers be stored?
Cover and refrigerate for up to 3 days. Reheat in the oven or microwave until warmed through.