Creamy Spinach Chicken Casserole

Category: Dinner Solutions You'll Love

Experience a comforting dish with juicy chicken breasts layered over fresh spinach and topped with a rich blend of sour cream, mayonnaise, and parmesan cheese. The creamy sauce infuses every bite with savory flavor, while shredded Monterey Jack cheese adds gooey texture and a golden finish. Quick to prepare, this satisfying bake is ideal for busy weeknights or family gatherings. It pairs well with rice, pasta, or garlic bread, making it a versatile addition to your dinner table and a surefire favorite for those craving creamy, cheesy comfort food.

Hannah Author
Updated on Sun, 15 Jun 2025 18:21:00 GMT
A creamy spinach chicken casserole. Save
A creamy spinach chicken casserole. | recipesbyhannah.com

This Creamy Spinach Chicken Casserole is the answer to chilly nights when you want real comfort food without fuss. Juicy chicken breasts are baked with loads of fresh spinach and covered in a tangy parmesan cream sauce. The result is bubbling and golden with gooey Monterey Jack cheese over the top. I reach for this when I need dinner on the table in under half an hour without sacrificing flavor or family appeal.

The first time I made this casserole I was skeptical about how much spinach it called for but it melts away and gives the perfect silky texture. Now everyone always asks for more

Ingredients

  • Chicken breasts: lean protein that stays tender when baked use boneless and slice them to cook through evenly
  • Fresh spinach: brings a mild earthy flavor and becomes lush under the sauce look for bright green leaves with no wilting
  • Shredded Monterey Jack cheese: creaminess and melt this cheese gives that iconic stretchy topping freshly grated is best
  • Mayonnaise: adds silkiness to the sauce pick one with real eggs for flavor
  • Sour cream: gives tang to balance the richness use full fat for best texture
  • Parmesan cheese: nutty and salty punch to the sauce always grate from a wedge if you can
  • Ground black pepper: warmth and subtle bite choose freshly cracked if possible
  • Garlic salt: layers in savory flavor and seasons the dish thoroughly

Step-by-Step Instructions

Preheat the Oven:
Get your oven hot at five hundred degrees Fahrenheit use a sturdy baking dish that can handle high heat and lightly grease to prevent sticking
Make the Creamy Sauce:
Combine mayonnaise sour cream parmesan cheese black pepper and garlic salt in a bowl whisk until everything is smooth and silky with no lumps
Build the Casserole Layer:
Spread the fresh spinach evenly in the bottom of your baking dish let it pile high because it will cook down a lot Place chicken breast pieces flat on top making sure each has good contact with the spinach
Spread the Sauce:
Dollop the creamy sauce over every chicken breast spreading to cover them entirely This helps keep the meat juicy as it bakes
Add Cheese Top:
Generously scatter shredded Monterey Jack cheese on the casserole for bubbly browning and a golden crown
Bake to Perfection:
Slide the dish onto the bottom rack and bake for about twenty to twenty five minutes The cheese should be golden and the chicken cooked through with juices running clear
A creamy spinach chicken casserole. Save
A creamy spinach chicken casserole. | recipesbyhannah.com

I always use a little extra parmesan in the sauce and once my daughter said it tasted exactly like a grown up version of her favorite mac and cheese but much better for her

Storage Tips

Store leftovers in a sealed container in the fridge for up to three days Warm gently in the oven covered with foil or microwave single servings for a quick heat up The creamy sauce may separate if frozen so I recommend sticking to refrigeration for best results

Ingredient Substitutions

Swap chicken breasts for boneless chicken thighs for extra juiciness Greek yogurt can replace sour cream in a pinch For the cheese try mozzarella or a cheddar jack mix if Monterey Jack is not handy Baby kale works instead of spinach if you want a sturdier green

Serving Suggestions

Spoon the casserole over fluffy rice buttered noodles or roasted potatoes for a meal that soaks up every drop of sauce Add a simple green salad or garlic bread for freshness and crunch It also makes a perfect potluck dish since it can travel and reheat easily

A creamy spinach chicken casserole being served. Save
A creamy spinach chicken casserole being served. | recipesbyhannah.com

Cultural and Historical Context

Chicken and spinach casseroles are beloved in American kitchens because they borrow from classic comfort foods creamy chicken bakes and spinach gratins This recipe turns those flavors into a easy weeknight solution that still feels like something special

Recipe FAQs

→ Can I substitute another cheese for Monterey Jack?

Yes, mozzarella or cheddar can be used for a similar melt and texture. Each cheese adds its own flavor twist.

→ How do I know when the chicken is cooked through?

The chicken should reach an internal temperature of 165°F and appear no longer pink in the center.

→ Is it possible to use frozen spinach?

Frozen spinach works well. Thaw and squeeze out excess water before layering in the dish to avoid sogginess.

→ Can I prepare this dish ahead of time?

You can assemble the casserole up to a day in advance and bake just before serving for best results.

→ What sides pair well with this creamy dish?

Serve it with rice, pasta, garlic bread, or a fresh green salad for a complete meal.

Creamy Spinach Chicken Casserole

Chicken and spinach baked in creamy parmesan sauce for a comforting, crowd-pleasing main dish.

Preparation Time
5 min
Cooking Time
25 min
Total Time
30 min

Category: Main Dishes

Difficulty Level: Easy

Cuisine: American

Yield: 8 Servings

Dietary Preferences: Gluten-Free

Ingredients

→ For the Casserole

01 1 lb chicken breasts, halved horizontally
02 8 oz fresh spinach
03 8 oz shredded Monterey Jack cheese

→ For the Creamy Sauce

04 1/2 cup mayonnaise
05 1/2 cup sour cream
06 1/2 cup grated parmesan cheese
07 1/2 tsp ground black pepper
08 1 tsp garlic salt

Directions

Step 01

Set your oven to 500°F. Lightly coat a 13x9-inch baking dish with cooking spray and set aside.

Step 02

In a medium bowl, mix together the mayonnaise, sour cream, parmesan cheese, black pepper, and garlic salt until smooth and well-combined.

Step 03

Layer the fresh spinach in the bottom of the prepared baking dish. Place the uncooked chicken breasts on top of the spinach. Spread the creamy sauce evenly over the chicken breasts.

Step 04

Sprinkle the shredded Monterey Jack cheese over the top of the casserole.

Step 05

Place the dish on the bottom rack of the preheated oven and bake for 20-25 minutes, or until the chicken is fully cooked and the spinach has wilted.

Notes

  1. Be sure to use a baking dish that can withstand high oven temperatures (500°F), such as a heavy-duty Dutch oven.
  2. For a creamy and flavorful meal, serve over your favorite rice or pasta.

Required Equipment

  • 13x9-inch baking dish
  • Mixing bowl
  • Cooking spray
  • Oven

Allergen Information

Check all ingredients for potential allergens and consult a medical professional if uncertain.
  • Dairy (Monterey Jack cheese, sour cream, parmesan cheese, mayonnaise)

Nutritional Information (per serving)

These details are for reference only and shouldn't replace medical advice.
  • Calories: 272
  • Fats: 21 g
  • Carbohydrates: 2 g
  • Proteins: 19 g