
This buffalo chicken sweet potato casserole brings all the bold and comforting flavors you crave but packs them into a healthy one-pan meal that hits the spot after a long day. You get tender chicken, perfectly roasted sweet potatoes, broccoli florets, and all that cheesy tang from the buffalo sauce. I turn to this dish whenever I need something filling and hearty, but still feel great after eating it.
Ingredients
- Chicken breast boneless and skinless: choose plump and pale pink pieces for juiciness and mild flavor
- Sweet potatoes: pick firm ones with little to no blemishes their natural sweetness contrasts the spice
- Broccoli: opt for bright green compact heads to ensure freshness and crunch
- Buffalo sauce: reach for your favorite brand or homemade version for that classic tangy heat
- Olive oil: helps roast vegetables and chicken to golden tenderness use extra virgin for best flavor
- Garlic powder: choose fresh for the most punchy aroma it builds the savory layer
- Onion powder: look for pure and vibrant powder it enhances the overall depth
- Salt: choose fine sea salt for even seasoning throughout
- Black pepper: freshly ground gives the most robust flavor
- Cheddar cheese: always use freshly shredded it makes the topping melt better and gives a creamy finish
- Green onion garnish: adds freshness color and a mild zing I always grab the brightest bunch at the store
Step-by-Step Instructions
- Prepare the Baking Dish:
- Spray a nine by thirteen inch casserole dish with oil and preheat your oven to four hundred twenty five degrees Fahrenheit. This step prevents sticking and readies your dish for cooking.
- Mix the Buffalo Sauce:
- In a small bowl combine your buffalo sauce olive oil garlic powder onion powder salt and black pepper. Stir well so everything becomes a unified marinade that will flavor your ingredients.
- Season the Sweet Potatoes:
- Dump your sweet potato cubes into a large bowl and pour in half of the buffalo sauce mixture. Toss thoroughly until every piece gets an even coating. This base will caramelize and soak up flavor in the first stage of baking.
- Roast the Potatoes:
- Arrange the coated sweet potatoes in your prepared casserole dish in a single even layer. Bake for thirty minutes flipping them halfway through. This step softens the potatoes and brings out their sweetness.
- Prepare Chicken and Broccoli:
- While the potatoes roast add your chicken cubes and broccoli florets to the same large mixing bowl. Pour over the remaining buffalo sauce and toss to coat really well so every piece picks up plenty of flavor.
- Layer and Bake:
- Once the sweet potatoes are mostly cooked scatter the seasoned chicken and broccoli right on top. Spread them out evenly for consistent baking. Return the dish to the oven and bake for another twenty to twenty five minutes. You want the chicken fully cooked and broccoli just tender.
- Add the Cheesy Finish:
- As soon as your chicken is cooked sprinkle the entire casserole with fresh cheddar cheese. Slide the pan under the broiler for about three to five minutes. Watch closely so the cheese melts and bubbles without burning.
- Garnish and Serve:
- Take out the bubbling casserole and let it cool slightly. Scatter chopped green onion on top for color and bite. Slice and serve warm for best flavor and texture.

Buffalo sauce is my not so secret weapon in this casserole because it gives the whole dish a craveable tangy punch. My family always gets excited as soon as they smell it wafting from the oven. Watching everyone gather around the table just as the cheese bubbles is hands down my favorite part of the week.
Storage Tips
Once your casserole has cooled completely cut it into portions and store them in airtight containers in the fridge for up to four days. For longer storage wrap individual slices tightly and freeze for up to three months. Reheat in the oven to recover that bubbly cheese top and avoid sogginess from the microwave.
Ingredient Substitutions
No sweet potatoes in the pantry You can swap in butternut squash for a similar sweetness. If you are after extra crunch try cauliflower instead of broccoli. Want it dairy free Skip the cheese or use a plant based alternative. For milder heat use half buffalo sauce and half plain tomato sauce to suit your spice level.
Serving Suggestions
This casserole makes a perfect all in one dinner on its own but it also travels well for meal prep lunches. Add a dollop of creamy ranch or yogurt for a cooling contrast or serve with a fresh green salad. If you like a little crunch scatter toasted pumpkin seeds on top before serving.

Cultural and Historical Context
Buffalo chicken became a classic American flavor in upstate New York and has grown into everything from pizza to pasta. Sweet potatoes bring Southern comfort and natural sweetness while casseroles in general are the ultimate weeknight staple for families. This recipe celebrates classic buffalo flavor but in a lighter vegetable packed approach.
Recipe FAQs
- → Can I use chicken thighs instead of breasts?
Yes, chicken thighs add extra juiciness and work well. Adjust cook time if needed to ensure they fully cook through.
- → How spicy is the buffalo sauce?
The heat level depends on the buffalo sauce brand. Choose a mild or hot version to match your preference, or mix with a little cream for milder flavor.
- → Can I prepare this ahead of time?
Absolutely. Assemble ahead, then cover and refrigerate. When ready, bake and broil as directed for best texture and warmth.
- → Are other vegetables suitable in this casserole?
Yes! Cauliflower, bell peppers, or zucchini work well with the flavor combination and can be swapped with or added to broccoli.
- → How do I store leftovers?
Store cooled portions in airtight containers in the refrigerator for up to 4 days. Reheat in the oven or microwave until hot.