Get ready to fall head over heels for the Baked Potato Chicken and Broccoli Casserole! Imagine golden, tender cubes of potato intertwined with vibrant green broccoli and juicy chicken breast, all blanketed in gooey, melted cheddar cheese. This casserole is the ultimate comfort food, catching all the flavors of a homestyle dinner in just one dish. With its easy prep and family-friendly appeal, you’ll want to make this cozy and satisfying meal a part of your regular rotation.

Ingredients You’ll Need
The magic of this casserole starts with a handful of humble ingredients that work together to create something spectacular. Every item in this recipe was chosen for a reason, from the hearty potatoes to the rich, melty cheese. Together, they’ll deliver classic comfort, vibrant color, and the kind of flavor that has everyone coming back for seconds!
- Chicken Breast (3 cups, cooked and cubed): Use rotisserie or leftover chicken to make prep lightning-fast and the dish extra juicy.
- Russet Potatoes (4 cups, peeled and diced): These are the perfect all-purpose potatoes, yielding a creamy yet sturdy base for your casserole.
- Broccoli Florets (2 cups, blanched or steamed): Bright, fresh, and full of nutrients, broccoli adds color and crunch.
- Shredded Cheddar Cheese (1 1/2 cups): Melts beautifully and provides that quintessential cheesy pull with every serving.
- Sour Cream (1/2 cup): Adds a tangy richness and creaminess, marrying all the flavors.
- Milk (1/4 cup): Thins out the sour cream and adds silkiness to the casserole.
- Unsalted Butter (3 tablespoons, melted): Helps the potatoes crisp up on the edges while infusing flavor.
- Garlic Powder (1 teaspoon): Essential for that cozy, comforting undertone we love.
- Onion Powder (1/2 teaspoon): Gives the casserole a delightful savory depth.
- Salt (1/2 teaspoon): Makes all the flavors pop without overpowering.
- Black Pepper (1/4 teaspoon): Adds a gentle kick and rounds out each bite.
- Green Onions (2, chopped): Perfect for a bit of freshness and a pretty finish.
- Additional Shredded Cheese and Chopped Bacon (optional): Sprinkle on top for extra indulgence and a hint of smoky, savory crunch.
How to Make Baked Potato Chicken and Broccoli Casserole
Step 1: Prep and Bake the Potatoes
Start by preheating your oven to 375°F (190°C) and lightly greasing a 9×13-inch baking dish. Toss your diced potatoes with the melted butter, garlic powder, onion powder, salt, and pepper right in a big bowl. Spread the coated potatoes evenly across the baking dish, then pop them in the oven for 25 to 30 minutes. Stir halfway through for even cooking and golden edges. The potatoes will begin to turn perfectly tender, laying the groundwork for a hearty base in your Baked Potato Chicken and Broccoli Casserole.
Step 2: Lower the Temperature and Add the Good Stuff
Once your potatoes have baked to just-tender perfection, remove the dish from the oven and set the temperature down to 350°F (175°C). Now comes the fun part! Toss in the cubed chicken and blanched broccoli florets, spreading them over the warm potatoes. This step ensures that every forkful will be generously loaded with all three casserole stars.
Step 3: Creamy Sauce Time
In a small bowl, whisk together the sour cream and milk until smooth and pourable. Drizzle this creamy mixture over the casserole, then gently fold everything together right in the dish. This brings all the flavors together and distributes that tangy creaminess throughout.
Step 4: Add Cheese and Bake Again
Scatter the shredded cheddar cheese across the top and slide the dish back into your oven. Let it bake for another 15 to 20 minutes, or just until the cheese is gloriously melted and bubbly. If you adore an extra-gooey top, feel free to sprinkle even more cheddar here—the sky’s the limit!
Step 5: Finish and Serve
Once that cheesy blanket is bubbling, remove your Baked Potato Chicken and Broccoli Casserole from the oven. Shower the casserole with chopped green onions and, if you like, crumbled bacon or another round of shredded cheese. Let it cool for a few minutes (that cheese layer will be piping hot) before scooping generous helpings onto plates.
How to Serve Baked Potato Chicken and Broccoli Casserole

Garnishes
Amp up the appeal of your Baked Potato Chicken and Broccoli Casserole with a sprinkle of freshly chopped green onions or parsley. For the ultimate comfort food finish, add a dusting of extra cheddar or some smoky diced bacon. These little flourishes bring both flavor and a pop of color to every serving, making the whole casserole feel fresh and special.
Side Dishes
Since this casserole is so satisfyingly filling, you don’t need much on the side. A crisp green salad with a tangy vinaigrette or a bowl of simple vegetable soup does the trick. If you’re in the mood for something extra, serve alongside warm, buttery rolls—it’s perfect for mopping up any cheesy goodness left on the plate!
Creative Ways to Present
Transform your Baked Potato Chicken and Broccoli Casserole into a showstopper by serving it in individual ramekins for personal portions or as part of a family-style buffet. Garnish with fancy cheese shreds, a swirl of sour cream, or a sprinkle of smoked paprika for color. For potlucks, scoop casserole into small jars or cups and top each with bacon and scallions for a portable, party-ready treat!
Make Ahead and Storage
Storing Leftovers
Transfer any leftover Baked Potato Chicken and Broccoli Casserole to an airtight container and refrigerate within two hours of baking. This casserole keeps beautifully in the fridge for up to four days. When you’re ready for another round, the flavors will be even more developed, making leftover night something to look forward to!
Freezing
If you want to make your weeknight even easier, you can freeze this casserole after baking. Let it cool completely, then wrap tightly or place in a freezer-safe container. It’s best enjoyed within two months—thaw overnight in the fridge before reheating so the texture stays as dreamy as day one.
Reheating
For best results, reheat your Baked Potato Chicken and Broccoli Casserole in a 350°F (175°C) oven, covered loosely with foil, until warmed through. You can also use the microwave in a pinch, though the oven preserves the cheesy topping’s beautiful melt. Add a sprinkle of fresh cheese or a pat of butter before reheating to refresh the flavors.
FAQs
Can I use frozen broccoli instead of fresh?
Absolutely! Just make sure to steam or thaw your frozen broccoli and pat it dry before adding it to the casserole. This prevents extra moisture and keeps the dish from getting soggy.
Is it possible to use a different cheese?
Yes! While cheddar is a classic and melts beautifully, feel free to try Monterey Jack, gouda, or a blend of cheeses for a different flavor spin in your Baked Potato Chicken and Broccoli Casserole.
How can I add more flavor to this casserole?
For deeper flavor, mix in smoked paprika, swap the chicken for smoked turkey, or sprinkle crispy bacon right into the casserole before baking. You can also add a pinch of Italian seasoning for a herby twist!
Can this casserole be made dairy-free?
With a few swaps, yes! Use your favorite plant-based cheese, dairy-free milk, and a vegan sour cream. Make sure all your ingredients are certified dairy-free, and you’ll still get that cozy casserole vibe.
What’s the best way to prepare this casserole ahead of time?
Assemble the entire Baked Potato Chicken and Broccoli Casserole up until the final bake, cover, and store in the fridge for up to 24 hours. Top with fresh cheese just before baking for the best texture and flavor.
Final Thoughts
If you’re hunting for a new weeknight staple or that perfect potluck contribution, give this Baked Potato Chicken and Broccoli Casserole a try. It’s hearty, fuss-free, and guaranteed to gather everyone around the table. Grab your casserole dish and discover why this cheesy classic is a comfort food favorite in so many homes!
Print
Baked Potato Chicken and Broccoli Casserole Recipe
- Prep Time: 20 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour 5 minutes
- Yield: 6 servings
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Non-Vegetarian
Description
This Baked Potato Chicken and Broccoli Casserole is a comforting and hearty dish that combines tender chicken, crispy potatoes, and vibrant broccoli, all baked in a creamy and cheesy sauce. Perfect for a family dinner or meal prep, this gluten-free casserole is sure to become a favorite.
Ingredients
For the Casserole:
- 3 cups cooked and cubed chicken breast
- 4 cups russet potatoes, peeled and diced into 1/2-inch cubes
- 2 cups broccoli florets, blanched or steamed
- 1 1/2 cups shredded cheddar cheese
- 1/2 cup sour cream
- 1/4 cup milk
- 3 tablespoons unsalted butter, melted
- 1 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 2 green onions, chopped
For Topping (Optional):
- Additional shredded cheese
- Chopped bacon
Instructions
- Preheat the oven: Preheat the oven to 375°F (190°C) and grease a 9×13-inch baking dish.
- Prepare the Potatoes: Toss diced potatoes with melted butter, garlic powder, onion powder, salt, and pepper. Spread in the baking dish and bake until tender.
- Assemble the Casserole: Add cooked chicken and steamed broccoli to the potatoes. Mix sour cream and milk, then pour over the casserole. Top with cheddar cheese.
- Bake: Bake for 15–20 minutes until cheese is melted. Garnish with green onions and optional toppings before serving.
Notes
- Enhance flavor with cooked bacon or smoked paprika.
- Use rotisserie chicken and frozen broccoli for convenience.
- Great for meal prep and reheats well.
Nutrition
- Serving Size: 1 portion
- Calories: 410
- Sugar: 3g
- Sodium: 360mg
- Fat: 22g
- Saturated Fat: 11g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 25g
- Fiber: 3g
- Protein: 30g
- Cholesterol: 95mg