
Spinach chicken casserole with cream cheese and mozzarella is my answer whenever someone asks for a cozy make-ahead dinner that always disappears fast. The creamy sauce, juicy chicken, and melty cheese bring everyone straight to the table. I love that it is entirely fuss-free yet feels purely comforting with each bite.
My family loves this on nights when everyone needs a little extra comfort. I first made it as a quick dinner after grocery shopping in a rush and now it is our go to request when we want a creamy hearty meal.
Ingredients
- Shredded chicken: Brings satisfying protein and soaks up all that creamy sauce Use rotisserie or leftover roast for extra flavor
- Fresh spinach: Brings color and nutrients Go for firm vibrant leaves for the best result
- Cream cheese: Creates the base of the sauce Use block cream cheese for smoother melting
- Mozzarella cheese: Adds that gooey melty topping Try whole milk mozzarella for maximum stretch
- Sour cream: Lends tang and richness Choose full fat for a luscious texture
- Chicken broth: Thins out the sauce without watering it down Go for low sodium and adjust seasoning as needed
- Garlic powder: Offers easy mellow garlic flavor Look for brands with no fillers
- Onion powder: Rounds out the flavors and saves chopping time
- Salt and pepper: Essential to balance flavors Taste and adjust for your preference
- Red pepper flakes: Adds a pop of heat optional but great for spice lovers Use fresh flakes for good flavor
- Breadcrumbs: Make a crispy golden topping Panko or fresh breadcrumbs both work Use day old bread if making your own
Step-by-Step Instructions
- Preheat and Prep Oven:
- Set your oven to 375°F or 190°C and lightly grease a baking dish about nine by thirteen inches This means nothing will stick and cleanup is easy
- Make the Creamy Mixture:
- Combine softened cream cheese sour cream chicken broth garlic powder onion powder salt pepper and red pepper flakes if using in a mixing bowl Whisk until everything looks smooth and creamy The cream cheese should not have lumps
- Fold in Chicken and Spinach:
- Add the shredded chicken and chopped spinach to the bowl Gently mix until every piece is coated and the spinach is evenly spread out No dry spots should remain
- Assemble in Baking Dish:
- Spread the mixture into your prepared baking dish Smooth it gently to the corners so it bakes evenly
- Add Cheese and Breadcrumb Topping:
- Sprinkle shredded mozzarella all over the top Finish with a layer of breadcrumbs so every bite gets a little crunch
- Bake and Rest:
- Bake in the preheated oven for twenty five to thirty minutes until hot and bubbling The breadcrumbs should turn crispy and golden If the top browns too quickly cover loosely with foil Remove from the oven and allow to cool for five minutes This helps the sauce thicken so the casserole is easy to scoop

You Must Know
- Perfect for meal prepping and freezes well for later
- Balanced meal with veggies protein and a savory sauce all in one dish
- You can double this recipe for parties or potlucks
My favorite part is that golden breadcrumb topping I grew up loving casseroles with a crunchy crust and now my family rushes to claim the crispy corners It always brings smiles to the table

Storage Tips
Let leftovers cool completely then cover tightly with foil or transfer to an airtight container This casserole keeps well in the fridge for up to three days For longer storage freeze portions in individual containers Thaw in the fridge before reheating for best texture To reheat bake covered at 350°F until warmed through or use the microwave for a faster fix
Ingredient Substitutions
You can swap Greek yogurt for the sour cream for extra protein or use reduced fat cream cheese and mozzarella if you prefer a lighter version Rotisserie chicken works perfectly for speed If you do not have fresh spinach you can use thawed well drained frozen spinach Adjust seasoning to taste as some swaps can alter the saltiness
Serving Suggestions
Serve this casserole as a main course with a crisp green salad or simple side of roasted vegetables Garlic bread or a fluffy dinner roll is the perfect partner for scooping up the creamy sauce Leftovers also make an amazing lunch tucked into a wrap or spooned over cooked pasta
Cultural and Historical Context
Creamy casseroles have long been a staple in American kitchens as crowd pleasing solutions for family dinners and potlucks This casserole takes inspiration from both classic American cheese bakes and Mediterranean flavors by using plenty of spinach and a tangy cream cheese sauce It carries that homey feel of traditional casseroles but with lighter greens tucked in
Recipe FAQs
- → Can I use frozen spinach instead of fresh?
Yes, thaw and squeeze out excess moisture from frozen spinach before mixing it in to avoid a watery casserole.
- → What other cheeses can I substitute for mozzarella?
Try provolone, Monterey Jack, or a blend of Italian cheeses for a different flavor profile and melt.
- → How do I make the topping extra crispy?
Toss the breadcrumbs in a bit of melted butter before sprinkling them over the dish for a golden, crunchy result.
- → Can this dish be prepared ahead of time?
Yes, assemble the casserole, cover, and refrigerate up to 24 hours. Bake when ready to serve, adding a few extra minutes to the cooking time.
- → Is this dish freezer-friendly?
Prepare and freeze before baking. Thaw overnight in the fridge and bake as directed for best texture and flavor.