Here is my go-to baked potato chicken and broccoli casserole recipe, with tender chunks of chicken, fluffy baked potatoes, fresh broccoli, and a creamy cheese sauce that brings it all together.
This casserole is what I make when I need to feed my family something filling and comforting on busy weeknights. It’s basically a complete meal in one dish, and my kids actually eat their vegetables without complaining. Win-win, right?
Why You’ll Love This Baked Potato Chicken and Broccoli Casserole
- Complete one-dish meal – This casserole has everything you need – protein, vegetables, and potatoes all baked together in one pan, making dinner prep and cleanup a breeze.
- Simple ingredients – You probably have most of these pantry staples and basic ingredients on hand already, so no special shopping trip required.
- Family-friendly comfort food – The creamy, cheesy sauce coating tender chicken, potatoes, and broccoli makes this a hit with both kids and adults.
- Make-ahead friendly – You can prep this casserole earlier in the day and just pop it in the oven when you’re ready for dinner, perfect for busy weeknights.
- Balanced nutrition – With lean protein, vegetables, and potatoes all in one dish, you’re getting a well-rounded meal without having to prepare multiple sides.
What Kind of Potatoes Should I Use?
Yellow potatoes are perfect for this casserole because they hold their shape well during baking and have a naturally creamy texture that pairs beautifully with the other ingredients. You can also use red potatoes if that’s what you have on hand – they’ll work just as well and give you similar results. Russet potatoes will work too, though they tend to break down a bit more during cooking, which some people actually prefer for a softer texture. When cutting your potatoes, aim for uniform chunks about the size of a large grape so they cook evenly with the chicken and don’t end up mushy or undercooked.
Options for Substitutions
This comforting casserole is pretty forgiving when it comes to swaps and substitutions:
- Chicken breasts: Chicken thighs work great here and actually stay more tender during baking. You can also use leftover rotisserie chicken – just add it in the last 15 minutes of cooking to prevent it from drying out.
- Yellow potatoes: Red potatoes or Yukon golds are perfect substitutes. Russets work too, but cut them a bit smaller since they cook faster and can get mushy.
- Broccoli florets: Cauliflower, green beans, or asparagus make good swaps. Frozen broccoli works in a pinch – just thaw and drain it well first to avoid extra moisture.
- Sour cream: Greek yogurt is a great substitute that adds protein and cuts calories. You can also use cream cheese (soften it first) or heavy cream mixed with a tablespoon of lemon juice.
- Mayonnaise: More sour cream or Greek yogurt can replace the mayo entirely. For a lighter version, try using half the amount and add a splash of chicken broth.
- Shredded cheese: Any melting cheese works here – cheddar, mozzarella, Swiss, or a Mexican blend. Just stick with about 1 cup total for the best texture.
Watch Out for These Mistakes While Baking
The biggest mistake when making this casserole is not pre-cooking your potatoes, which will leave you with hard, undercooked chunks while everything else gets overdone – give them a 5-minute head start in the microwave or parboil them briefly before adding to the dish.
Another common error is adding the broccoli at the same time as everything else, causing it to turn mushy and lose its bright green color – instead, add the broccoli florets during the last 15-20 minutes of baking time.
Don’t forget to cut your chicken and potatoes into similar-sized pieces (about ¾-inch chunks) so they cook evenly, and always check that your chicken reaches 165°F with an instant-read thermometer before serving.
For extra flavor, try seasoning your chicken pieces with salt and pepper before mixing them in, and save some cheese to sprinkle on top during the last few minutes for a golden, bubbly finish.
What to Serve With Baked Potato Chicken and Broccoli Casserole?
This hearty casserole is pretty much a complete meal on its own, but I love serving it with a simple side salad to add some fresh crunch to balance out all that creamy goodness. A basic mixed greens salad with cucumber, cherry tomatoes, and a light vinaigrette works perfectly without competing with the rich flavors of the casserole. If you want something warm on the side, some buttery dinner rolls or crusty bread are great for soaking up any extra sauce from your plate. For a lighter option, steamed green beans or roasted asparagus make nice veggie additions that won’t make the meal feel too heavy.
Storage Instructions
Refrigerate: This casserole keeps really well in the fridge for up to 4 days when covered tightly with foil or plastic wrap. I actually think it tastes even better the next day after all those flavors have had time to meld together. Just make sure it’s completely cooled before covering to avoid condensation.
Freeze: You can freeze this casserole for up to 3 months, which makes it perfect for meal prep. I like to portion it into individual servings in freezer-safe containers so I can grab just what I need. Let it thaw overnight in the fridge before reheating for best results.
Warm Up: To reheat, cover with foil and bake at 350°F for about 20-25 minutes until heated through, or microwave individual portions for 2-3 minutes. The potatoes and chicken heat up nicely, though the broccoli might be a bit softer than when freshly made.
| Preparation Time | 15-20 minutes |
| Cooking Time | 50-60 minutes |
| Total Time | 65-80 minutes |
| Level of Difficulty | Medium |
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
- Calories: 1650-1850
- Protein: 90-110 g
- Fat: 95-110 g
- Carbohydrates: 105-120 g
Ingredients
For the filling:
- 2 boneless chicken breasts, diced
- 6 small gold potatoes, cubed (about 3 cups)
- 1 tsp olive oil
- 2 cups chopped broccoli florets
- 4 cloves garlic, finely minced
- 1 cup sour cream
- 1/2 cup mayonnaise
- 1/2 tsp fine sea salt
- 1/2 tsp ground black pepper
For the topping:
- 1 cup shredded cheese
Step 1: Prepare and Roast the Potatoes
- 6 small gold potatoes, cubed (about 3 cups)
- 1 tsp olive oil
Preheat your oven to 375°F (190°C) and lightly grease an 8 x 11-inch casserole dish.
Line a baking sheet with parchment paper.
Cut the gold potatoes into small cubes, then place them on the lined baking sheet.
Drizzle the potatoes with olive oil and toss to coat evenly.
Spread the cubes in a single layer and roast in the oven for 20 minutes, flipping them halfway through for even cooking.
Step 2: Prepare Chicken, Broccoli, and Garlic
- 2 boneless chicken breasts, diced
- 1/2 tsp fine sea salt
- 1/2 tsp ground black pepper
- 2 cups chopped broccoli florets
- 4 cloves garlic, finely minced
While the potatoes are roasting, dice the boneless chicken breasts into bite-sized pieces and place them in a large mixing bowl.
Season the chicken with fine sea salt and ground black pepper.
Chop the broccoli into small florets and finely mince the garlic cloves.
Add both the broccoli and garlic to the bowl with the chicken.
Step 3: Combine Roasted Potatoes and Creamy Mixture
- roasted potatoes from Step 1
- chicken, broccoli, and garlic mixture from Step 2
- 1 cup sour cream
- 1/2 cup mayonnaise
Once the potatoes are finished roasting, add them to the bowl with the chicken, broccoli, and garlic.
Stir gently to combine.
Next, add the sour cream and mayonnaise.
Mix thoroughly to coat all the ingredients evenly.
I like to take a moment and taste the mixture at this stage for seasoning; you can adjust the salt or pepper to your liking before baking.
Step 4: Assemble and Top the Casserole
- casserole mixture from Step 3
- 1 cup shredded cheese
Transfer the combined mixture into the prepared casserole dish and spread it out evenly.
Sprinkle shredded cheese evenly over the top to ensure a gooey, golden crust after baking.
Step 5: Bake and Serve the Casserole
Bake the casserole in the preheated oven for 45 to 50 minutes, or until the top is golden and bubbling and the chicken is fully cooked through.
Remove the casserole from the oven and let it rest for 5 minutes before serving.
Letting it rest helps the flavors meld and the casserole set slightly, making it easier to serve.
For a fresh finish, sometimes I garnish with a handful of chopped fresh herbs, if available.
Tasty Baked Potato Chicken and Broccoli Casserole
Ingredients
For the filling:
- 2 boneless chicken breasts, diced
- 6 small gold potatoes, cubed (about 3 cups)
- 1 tsp olive oil
- 2 cups chopped broccoli florets
- 4 cloves garlic, finely minced
- 1 cup sour cream
- 1/2 cup mayonnaise
- 1/2 tsp fine sea salt
- 1/2 tsp ground black pepper
For the topping:
- 1 cup shredded cheese
Instructions
- Preheat your oven to 375°F (190°C) and lightly grease an 8 x 11-inch casserole dish. Line a baking sheet with parchment paper. Cut the gold potatoes into small cubes, then place them on the lined baking sheet. Drizzle the potatoes with olive oil and toss to coat evenly. Spread the cubes in a single layer and roast in the oven for 20 minutes, flipping them halfway through for even cooking.
- While the potatoes are roasting, dice the boneless chicken breasts into bite-sized pieces and place them in a large mixing bowl. Season the chicken with fine sea salt and ground black pepper. Chop the broccoli into small florets and finely mince the garlic cloves. Add both the broccoli and garlic to the bowl with the chicken.
- Once the potatoes are finished roasting, add them to the bowl with the chicken, broccoli, and garlic. Stir gently to combine. Next, add the sour cream and mayonnaise. Mix thoroughly to coat all the ingredients evenly. I like to take a moment and taste the mixture at this stage for seasoning; you can adjust the salt or pepper to your liking before baking.
- Transfer the combined mixture into the prepared casserole dish and spread it out evenly. Sprinkle shredded cheese evenly over the top to ensure a gooey, golden crust after baking.
- Bake the casserole in the preheated oven for 45 to 50 minutes, or until the top is golden and bubbling and the chicken is fully cooked through. Remove the casserole from the oven and let it rest for 5 minutes before serving. Letting it rest helps the flavors meld and the casserole set slightly, making it easier to serve. For a fresh finish, sometimes I garnish with a handful of chopped fresh herbs, if available.
