Some nights the fridge is a little bare, but there’s usually a bag of potatoes in the pantry and some cooked chicken sitting around from the night before. This casserole came from exactly that kind of night. It’s hearty, it stretches simple ingredients into a full dinner, and it gives you that cheesy, comforting bite everyone at the table seems to want.
Thank you for reading this post, don't forget to subscribe!It takes a bit more oven time than some of my quicker weeknight dinners, but most of that time is hands-off. You get the prep done, slide it in, and go fold laundry or help with homework while it bakes.
Why You’ll Love This Chicken Casserole
The potatoes cook right in the same dish as the chicken and sauce, so there’s no separate pot of boiling potatoes to deal with. Everything lands in one baking dish, which keeps the mess down to a couple of bowls and a skillet.
The sauce is where the comfort really comes from. Cream of chicken soup, sour cream, and milk combine into something rich and savory that coats every potato cube. Once the Colby Jack goes on top and melts into a golden layer, it’s hard to resist digging in right away.
If you like this kind of hearty, cheese-topped chicken bake, my garlic parmesan chicken and potatoes follows a similar idea with a different flavor direction, in case you want to rotate between the two.
Ingredients
You’ll need medium potatoes, peeled and cubed, along with cooked and shredded chicken and a bag of frozen mixed vegetables. Onion and garlic go in for flavor, cooked briefly in olive oil before they hit the dish. Dried thyme, salt, and pepper season the chicken itself.
For the sauce, cream of chicken soup, milk, and sour cream whisk together into something smooth and pourable. Shredded Colby Jack cheese goes on top near the end of baking, and a little fresh parsley is a nice touch if you want to garnish before serving, though it’s completely optional.
Step-by-Step Instructions
Preheat your oven to 375°F and grease a 9×13-inch baking dish. In a large skillet, warm the olive oil over medium heat, then add the diced onion and minced garlic. Let them cook for about 5 minutes, until they’ve softened and lost that raw bite.
Add the shredded chicken to the skillet along with the thyme, salt, and pepper. Cook for another 2 to 3 minutes, just long enough for the seasoning to work its way through the chicken.
In a large bowl, whisk together the cream of chicken soup, milk, and sour cream until it’s smooth with no lumps.
Place the cubed potatoes in the prepared baking dish. Top with the chicken mixture, pour the soup mixture evenly over everything, and add the frozen mixed vegetables on top. Stir it all together right in the dish so the sauce coats each piece.
Cover the dish with foil and bake for 35 to 40 minutes. The potatoes should just be starting to soften at this point, though they won’t be fully tender yet.
Remove the foil and sprinkle the shredded Colby Jack cheese evenly across the top. Return the dish to the oven, uncovered, for another 15 to 20 minutes. You’re watching for the potatoes to turn fully tender and the cheese to melt into a lightly golden layer.
Let the casserole rest for about 10 minutes before serving. The sauce thickens up a little as it sits, which makes for cleaner scoops.
What to Serve With It
This casserole is filling enough on its own, but a simple green salad on the side helps balance out the richness. Steamed broccoli or roasted vegetables work well too if you want more greens on the plate. Dinner rolls are a nice addition if anyone at the table wants something to mop up extra sauce.
Variations
Swap the Colby Jack for sharp cheddar or a Mexican blend if that’s what you have on hand. Turkey works in place of chicken if that’s what’s leftover in your fridge. For a different vegetable mix, try corn and green beans instead of the standard blend, or leave out the vegetables entirely if your family prefers a simpler bake.
If you’re in the mood for something similar but made in the slow cooker instead, my slow cooker cheesy ranch chicken and potatoes is worth keeping in your rotation for days when the oven feels like one appliance too many.
Storage
Store leftovers in an airtight container in the fridge for up to 3 days. Freezing isn’t ideal here, since the potatoes tend to turn a bit mushy once thawed, but if you need to freeze it, let it cool completely and use a freezer-safe container for up to 3 months. Thaw overnight in the fridge before reheating.
To reheat, warm it in the oven at 350°F until heated through, or microwave individual portions in 30-second intervals until hot.
Frequently Asked Questions
Can I assemble this ahead of time?
Yes. Put the casserole together, cover it, and refrigerate for up to 24 hours. When you’re ready to bake, add 10 to 15 minutes to the initial covered bake time so the potatoes have time to catch up.
Why are my potatoes still firm after baking?
Potato cubes that are cut larger than about an inch will need extra time. Try cutting them smaller next time, or add a few more minutes to the covered bake.
Can I use rotisserie chicken instead of cooking my own?
Absolutely. Rotisserie chicken shreds easily and saves a step, since it’s already cooked and seasoned.
What if I don’t have sour cream?
Plain Greek yogurt works as a substitute and keeps the sauce just as creamy.
Can I use fresh vegetables instead of frozen?
Yes, though you may want to lightly steam sturdier vegetables like carrots beforehand so they cook through in the same time as the potatoes.
Is there a lower-fat version of this casserole?
Light sour cream and reduced-fat cheese both work fine here without changing the texture much.
Warm Closing
This has turned into one of the dinners I fall back on when I want something filling without much fuss. For another easy way to use up chicken and potatoes on a busier night, my one-pan chicken and potatoes is a good one to have on hand too. I hope this casserole makes one of your evenings a little easier.
Cheesy Chicken and Potato Casserole
Equipment
- 9×13 inch baking dish
- Large skillet
- Mixing bowl
- Aluminum foil
Ingredients
- 6 medium potatoes peeled and cubed
- 2 cups cooked and shredded chicken
- 2 cups frozen mixed vegetables carrots, peas, corn, and green beans
- 1 medium onion diced
- 3 cloves garlic minced
- 2 tbsp olive oil
- 1 tsp dried thyme
- 1 tsp salt
- 1/2 tsp black pepper
- 1 can (10.5 oz) cream of chicken soup
- 1 cup milk
- 1 cup sour cream
- 2 cups shredded Colby Jack cheese
- fresh parsley optional garnish
Instructions
- Preheat the oven to 375°F. Grease a 9×13-inch baking dish.
- In a large skillet, heat olive oil over medium heat. Add diced onion and minced garlic, and cook until softened, about 5 minutes.
- Add the shredded chicken to the skillet and season with thyme, salt, and pepper. Cook about 2-3 minutes to blend the flavors.
- In a large bowl, whisk together cream of chicken soup, milk, and sour cream until smooth.
- Place the cubed potatoes in the prepared baking dish. Top with the chicken mixture and pour the soup mixture evenly over the top. Add the mixed vegetables on top. Mix well to combine all the ingredients.
- Cover the baking dish with foil and bake for 35-40 minutes, or until the potatoes are just starting to become tender.
- Remove the foil and sprinkle the shredded Colby Jack cheese over the top of the casserole.
- Return the casserole to the oven and bake, uncovered, for an additional 15-20 minutes, or until the potatoes are fully tender and the cheese is melted and lightly golden brown.
- Remove from the oven and let cool for 10 minutes before serving.
