Chicken and Spinach Casserole with Cream Cheese tastes rich, garlicky, and extra creamy with a bubbling cheese crust that invites a second scoop. It suits busy families, new cooks, low carb folks, and it lands on the table in about 45 minutes. I first made it after a long day when the fridge held chicken, spinach, and a block of cream cheese that practically waved at me.
Why Chicken and Spinach Casserole with Cream Cheese Is Worth It
Chicken and Spinach Casserole with Cream Cheese gives you comfort food with easy prep and reliable flavor. You stir a few pantry staples into a velvety sauce, tuck in tender chicken and spinach, then bake until the top turns golden and the edges sizzle.
You also win on flexibility. You can use fresh or frozen spinach, raw or rotisserie chicken, and several cheese combos without drama.
So creamy and cozy, this casserole won dinner at my house and left zero leftovers ★★★★★
Ingredients You Need
- Chicken: 1.5 to 2 pounds boneless skinless breasts or thighs, cut in 1 inch pieces. Shortcut: 4 cups shredded rotisserie chicken.
- Oil: 1 tablespoon olive oil for searing and greasing the dish.
- Onion: 1 small yellow onion, finely diced. Use frozen diced onion for speed.
- Garlic: 3 to 4 cloves, minced, or 1 teaspoon garlic powder in a pinch.
- Spinach: 10 ounces fresh baby spinach, roughly chopped, or 10 ounces frozen chopped spinach, thawed and squeezed dry.
- Cream cheese: 8 ounces, softened. I like Philadelphia for smooth melt, but any full-fat brick works.
- Sour cream or Greek yogurt: 1 cup. Yogurt gives a light tang.
- Chicken broth: 1/2 cup to loosen the sauce.
- Dijon mustard: 1 teaspoon for depth.
- Seasoning: 1 teaspoon Italian seasoning, 1 teaspoon kosher salt, 1/2 teaspoon black pepper, 1/4 to 1/2 teaspoon red pepper flakes optional.
- Cheese on top: 1 cup shredded mozzarella and 1/2 cup grated Parmesan. Swap part mozzarella with Monterey Jack for extra melt.
- Optional crunchy topping: 1/2 cup panko mixed with 1 tablespoon melted butter. Low carb swap: crushed pork rinds.
- Bright finish: Zest of 1/2 lemon and chopped parsley.
Equipment you need
- 9 by 13 inch casserole dish, lightly greased
- Large skillet
- Mixing bowl and whisk
- Cutting board and knife
- Foil for tenting if the top browns too fast
- Instant read thermometer if starting with raw chicken
Quick Tips & substitutions
- Soften cream cheese so it blends smooth. Set it out 30 minutes or microwave it for 15 to 20 seconds.
- Squeeze frozen spinach very dry to avoid a watery casserole. I wring it in a clean towel.
- Use rotisserie chicken to cut prep time. Shred it while warm for easy mixing.
- Keep it low carb and gluten free by skipping panko or using crushed pork rinds.
- Thin a too-thick sauce with a splash of broth. Thicken a loose mix with a bit more shredded mozzarella.
- Swap yogurt for sour cream, or use half and half mayo for extra richness.
- Go dairy-light with lactose-free cream cheese and cheese if you need it.
- Season the chicken directly. Salt on the meat gives better flavor than trying to fix blandness later.
How to Make Chicken and Spinach Casserole with Cream Cheese
Step 1: Heat the oven and prep the dish
- Preheat the oven to 375 degrees Fahrenheit.
- Grease a 9 by 13 inch casserole dish with olive oil.
Step 2: Season and sear the chicken
- Pat chicken dry, then toss with 1 teaspoon kosher salt, 1/2 teaspoon black pepper, and 1/2 teaspoon Italian seasoning.
- Heat 1 tablespoon oil in a large skillet over medium high heat.
- Sear chicken in two batches for 2 to 3 minutes per side until lightly browned. The oven will finish the cooking. Skip this step if using rotisserie chicken.
Step 3: Sauté aromatics and cook the spinach
- Reduce heat to medium. Add onion and cook 3 minutes until it softens.
- Stir in garlic and cook 30 seconds until fragrant.
- Add fresh spinach and cook 2 to 3 minutes until it wilts, or fold in thawed, squeezed frozen spinach to warm through. Remove from heat.
Step 4: Mix the cream cheese sauce
- In a bowl, whisk cream cheese, sour cream or yogurt, chicken broth, Dijon, remaining Italian seasoning, red pepper flakes if using, and a pinch of salt and pepper.
- Whisk until smooth and pourable. Add a splash more broth if it looks too stiff.
Step 5: Assemble the casserole
- In the greased dish, combine seared or shredded chicken with the onion spinach mix.
- Pour the cream cheese sauce over and toss to coat evenly.
- Top with mozzarella and Parmesan. Add panko mixed with melted butter if you want crunch.
Step 6: Bake
- Bake uncovered until the center bubbles and the cheese turns golden, 20 to 25 minutes with raw seared chicken, or 15 to 18 minutes with rotisserie chicken.
- Check that chicken reaches 165 degrees Fahrenheit in the thickest piece if you started with raw meat.
- Broil for 1 to 2 minutes for extra color if you like.
Step 7: Rest and finish
- Let the casserole rest 5 to 10 minutes so the sauce settles and thickens.
- Add lemon zest and parsley on top. Scoop and serve hot.
Variations
- Artichoke spinach: Fold in 1 cup chopped marinated artichokes and add extra 1/4 cup Parmesan.
- Bacon ranch: Stir in 1/2 cup cooked chopped bacon and 1 tablespoon dry ranch seasoning, then top with cheddar.
- Pesto swirl: Marble 1/4 cup basil pesto into the sauce and finish with pine nuts.
- Buffalo style: Add 1/4 cup hot sauce to the sauce and top with a blend of mozzarella and blue cheese crumbles.
- Mushroom lover: Sauté 8 ounces sliced cremini until browned, then mix in with the spinach.
- Tex Mex: Add 1 teaspoon cumin, 1/2 teaspoon chili powder, a can of mild diced green chiles, and top with pepper jack.
- Turkey swap: Use cooked turkey in place of chicken for a post-holiday win.
Ways to Serve
- Spoon over buttered rice, orzo, or egg noodles.
- Keep it low carb with cauliflower rice or zucchini ribbons.
- Add crunch with garlic bread or warm pita.
- Pair with a simple green salad and lemon vinaigrette.
- Serve with roasted potatoes or a baked sweet potato.
- Tuck leftovers into a warm tortilla for a quick lunch.
Storage
Cool leftovers, then store them in a sealed container in the fridge for 3 to 4 days. Reheat portions in the microwave until steaming, or cover the whole dish with foil and warm at 350 degrees Fahrenheit for 20 to 25 minutes. Freeze portions for up to 2 months, then thaw overnight and reheat gently so the sauce stays creamy. If the sauce thickens too much, stir in a splash of broth after reheating.
Chicken and Spinach Casserole with Cream Cheese
Chicken and Spinach Casserole with Cream Cheese is a rich, garlicky, extra-creamy bake with spinach, tender chicken, and a bubbling cheese crust that suits busy families, new cooks, and low-carb eaters.
Ingredients
Instructions
- Preheat the oven to 375°F (190°C). Lightly grease a 9x13-inch casserole dish with a little olive oil.
- Pat the chicken dry and toss it with 1 teaspoon kosher salt, 1/2 teaspoon black pepper, and 1/2 teaspoon Italian seasoning. If using rotisserie chicken, simply shred it and set aside.
- Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Sear the seasoned chicken in two batches for 2–3 minutes per side, just until lightly browned. The chicken will finish cooking in the oven. Transfer to a plate. Skip this step if using rotisserie chicken.
- Reduce the heat to medium. In the same skillet, add the diced onion and cook for about 3 minutes until softened. Stir in the minced garlic and cook for 30 seconds until fragrant.
- Add the spinach. If using fresh spinach, cook 2–3 minutes until wilted. If using thawed frozen spinach, fold it in and cook just until warmed through. Remove the skillet from the heat.
- In a mixing bowl, whisk together the softened cream cheese, sour cream or Greek yogurt, chicken broth, Dijon mustard, remaining 1 1/2 teaspoons Italian seasoning, red pepper flakes (if using), and a pinch of salt and pepper until smooth and pourable. Add a splash more broth if the mixture seems too thick.
- In the prepared casserole dish, combine the seared or shredded chicken with the onion-spinach mixture. Pour the cream cheese sauce over the top and toss gently to coat everything evenly.
- Sprinkle the mozzarella and Parmesan cheese evenly over the casserole. If you like a crunchy topping, mix the panko with the melted butter and scatter it over the cheese.
- Bake uncovered for 20–25 minutes if using raw seared chicken, or 15–18 minutes if using cooked rotisserie chicken, until the center is bubbling and the cheese is golden. If starting with raw chicken, check that the thickest pieces reach 165°F (74°C). Broil for 1–2 minutes at the end if you want extra color on top.
- Remove from the oven and let the casserole rest for 5–10 minutes so the sauce can thicken slightly. Finish with lemon zest and chopped parsley. Serve hot.
Notes
Nutrition Information
Approximate per serving (1/6 of recipe, made with 1.75 lb chicken breasts, full-fat cream cheese, sour cream, and no panko): 430 calories; fat 29 g; saturated fat 14 g; carbohydrates 7 g; fiber 1 g; sugars 3 g; protein 36 g; sodium 780 mg. Values will vary based on exact ingredients, brands, and portion size.
Approximate per serving (1/6 of recipe, made with 1.75 lb chicken breasts, full-fat cream cheese, sour cream, and no panko): 430 calories; fat 29 g; saturated fat 14 g; carbohydrates 7 g; fiber 1 g; sugars 3 g; protein 36 g; sodium 780 mg. Values will vary based on exact ingredients, brands, and portion size.