Oven Baked 4-Ingredient Chicken Florentine Supreme
This easy baked chicken Florentine is a creamy, comforting casserole made with just four simple ingredients. Tender chicken breasts are baked over seasoned spinach, covered with creamy chicken soup, and finished with a golden layer of melted cheese.
It’s an easy chicken and spinach casserole for busy weeknights, family dinners, or whenever you want a warm homemade meal without a long ingredient list. The combination of tender chicken, creamy sauce, spinach, and bubbling cheese makes this simple casserole incredibly satisfying.
Why You’ll Love This Chicken Florentine
- Only 4 ingredients – Simple pantry and freezer staples make this recipe easy to prepare.
- Easy one-dish dinner – Everything bakes together in one casserole dish for less cleanup.
- Creamy and comforting – Condensed cream of chicken soup creates a rich, creamy sauce.
- Tender chicken and spinach – A simple way to add spinach to a hearty family meal.
- Perfect for busy weeknights – Minimal preparation means dinner can be in the oven quickly.
- Family-friendly – Mild flavors and melted cheese make this casserole easy to enjoy.
- Great for meal planning – The leftovers can be reheated for an easy lunch or dinner.
Ingredients
- 4 boneless, skinless chicken breasts
- 1 package (10 ounces) frozen chopped spinach, thawed and thoroughly drained
- 1 can (10 1/2 ounces) condensed cream of chicken soup
- 1 1/2 cups shredded mozzarella or Swiss cheese
How to Make 4-Ingredient Chicken Florentine
1. Prepare the oven and baking dish
Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch casserole dish or similar oven-safe baking dish.
2. Add the spinach
Spread the thawed and well-drained spinach evenly across the bottom of the baking dish.
3. Add the chicken
Place the chicken breasts in a single layer over the spinach. If the breasts are especially thick, pound them to an even thickness so they cook more consistently.
4. Add the creamy sauce
Spoon the condensed cream of chicken soup over the chicken breasts and spread it into an even layer.
5. Add the cheese
Sprinkle the shredded mozzarella or Swiss cheese evenly over the top.
6. Bake
Bake uncovered for 35 to 45 minutes, or until the chicken reaches a safe internal temperature of 165°F (74°C) and the cheese is melted, bubbling, and lightly golden.
7. Rest and serve
Allow the casserole to rest for 5 to 10 minutes before serving. This gives the creamy sauce a chance to settle and makes the casserole easier to portion.
Tips for the Best Chicken Florentine Casserole
Drain the spinach well: Frozen spinach holds a lot of water. Squeeze out as much moisture as possible to prevent a watery casserole.
Use evenly sized chicken breasts: Very thick chicken breasts can take longer to cook. Pounding them to an even thickness helps them bake more evenly.
Try Swiss cheese: Swiss cheese gives this classic-style casserole a slightly nutty flavor and creates a beautifully browned topping.
Check the chicken temperature: Because chicken breast sizes vary, use an instant-read thermometer to make sure the thickest part reaches 165°F.
Let it rest: A short resting period helps the creamy sauce thicken slightly before serving.
What to Serve With Chicken Florentine
This creamy chicken casserole pairs especially well with:
- Buttered egg noodles
- Steamed white rice
- Mashed potatoes
- Toasted bread or dinner rolls
- Green beans
- Glazed carrots
- A simple garden salad
The rice, noodles, or mashed potatoes are particularly good for soaking up the creamy spinach sauce.
Recipe Variations
Mozzarella Chicken Florentine: Use mozzarella for a mild, stretchy, cheesy topping.
Swiss Chicken Florentine: Replace mozzarella with Swiss cheese for a more savory, slightly nutty flavor.
Chicken Florentine With Rice: Serve the finished casserole over fluffy white rice for a complete and filling dinner.
Low-Carb Option: Serve the chicken and spinach without noodles, rice, or potatoes alongside a simple green vegetable or salad.
Storage and Reheating
Store leftover chicken Florentine in an airtight container in the refrigerator for up to 3–4 days. Reheat individual portions in the microwave or warm larger portions in the oven until heated through.
Frequently Asked Questions
Can I use fresh spinach instead of frozen?
Yes. Fresh spinach can be used, but cooking it briefly first and removing excess moisture will help prevent the casserole from becoming watery.
Can I use chicken thighs?
Yes. Boneless, skinless chicken thighs can be substituted for chicken breasts. Cooking time may vary depending on their size.
Can I prepare this casserole ahead of time?
Yes. You can assemble the casserole ahead of time, cover it, and refrigerate it until you’re ready to bake. Allow for additional baking time if the dish goes directly from the refrigerator into the oven.
What cheese is best for chicken Florentine?
Mozzarella provides a mild, creamy, melty topping, while Swiss cheese gives the casserole a richer and slightly nuttier flavor.
