Chicken and potato casserole combines tender potato cubes, cooked shredded chicken, mixed vegetables, and a creamy soup sauce beneath a golden layer of Colby Jack cheese. The dish bakes covered first so the potatoes steam and soften, then uncovered to melt and brown the topping.
This 9-by-13-inch casserole serves eight. It takes about 20 minutes to prepare and 70 minutes to bake, followed by a short rest that helps the creamy filling settle.
Ingredients for Chicken and Potato Casserole
The casserole uses 6 medium peeled and cubed potatoes, 2 cups cooked shredded chicken, 2 cups frozen mixed vegetables, 1 diced onion, 3 minced garlic cloves, 2 tablespoons olive oil, 1 teaspoon dried thyme, 1 teaspoon salt, and 1/2 teaspoon black pepper.
Whisk one 10.5-ounce can cream of chicken soup with 1 cup milk and 1 cup sour cream. Finish with 2 cups shredded Colby Jack and optional parsley.
If you enjoy this recipe, you may also like Crack Chicken and Rice Skillet.
How to Make Chicken and Potato Casserole
- Preheat. Heat the oven to 375°F and grease a 9-by-13-inch dish.
- Cook aromatics. Soften onion and garlic in olive oil over medium heat for about 5 minutes.
- Season chicken. Add cooked shredded chicken, thyme, salt, and pepper and cook 2 to 3 minutes.
- Mix sauce. Whisk cream of chicken soup, milk, and sour cream until smooth.
- Assemble. Combine potato cubes, chicken mixture, frozen vegetables, and sauce in the dish.
- Bake covered. Cover with foil and bake 35 to 40 minutes, until potatoes begin to soften.
- Add cheese. Remove foil, scatter Colby Jack, and bake 15 to 20 minutes more.
- Rest. Cool for 10 minutes and garnish with parsley.
For storage details after serving, the USDA leftovers and food safety guidance.
Cut Potatoes into Uniform Cubes
Peel the potatoes and cut them into similar bite-size cubes. Consistent size is crucial because the potatoes go into the dish raw and must become tender during the covered baking stage.
Very large pieces can remain firm after the sauce is bubbling, while tiny pieces may lose their shape. Aim for cubes that are easy to scoop and eat with the shredded chicken.
If you enjoy this recipe, you may also like Pizza Casserole with Italian Sausage.
Use Fully Cooked Chicken
This recipe begins with 2 cups already cooked and shredded chicken. Rotisserie meat, poached chicken breast, or properly stored leftovers all work.
Remove bones, skin, and tough pieces before shredding. Because the meat will bake for an extended period, keep the shreds moderately large so they remain noticeable and moist in the finished casserole.
Soften Onion and Garlic First
Warm the olive oil over medium heat and cook the diced onion and minced garlic for about 5 minutes. The onion should soften and turn translucent without becoming deeply browned.
Pre-cooking removes the raw bite and distributes their flavor through the chicken. Stir frequently near the end so the small garlic pieces do not scorch.
Season the Shredded Chicken
Add the cooked chicken to the softened aromatics and season it with dried thyme, salt, and black pepper. Stir for 2 to 3 minutes, just long enough for the chicken to warm and absorb the seasoned oil.
Taste carefully before adding extra salt. Cream of chicken soup and Colby Jack both contribute seasoning later in the recipe.
Whisk a Smooth Creamy Sauce
In a large bowl, whisk the condensed soup, milk, and sour cream until uniform. Break up all dense soup pockets before the sauce reaches the baking dish.
Milk loosens the condensed base, while sour cream adds body and a gentle tang. A smooth mixture coats the potatoes more evenly than ingredients added separately.
Combine Every Layer Thoroughly
Place potato cubes in the greased dish, add the chicken mixture and frozen vegetables, and pour the sauce across the top. Fold everything together until sauce reaches the bottom and all potatoes look coated.
Spread the mixture into a level layer. Potatoes protruding above the sauce can dry, and deep mounds cook more slowly than an even casserole.
Bake Covered Until Nearly Tender
Seal the dish with foil and bake at 375°F for 35 to 40 minutes. Carefully peel back one corner and test a potato cube near the center with a knife.
It should be starting to soften but can still offer slight resistance because the casserole has another 15 to 20 minutes in the oven. Reseal and continue covered if the cubes remain very firm.
Finish with Colby Jack
Remove the foil and scatter 2 cups shredded Colby Jack from edge to edge. Return the casserole to the oven uncovered for 15 to 20 minutes.
The potatoes should become fully tender, the sauce should bubble around the perimeter, and the cheese should melt with light golden spots. Do not rely on browning alone; test a center potato before removing the dish.
Rest Before Serving
Leave the casserole on a heat-safe surface for 10 minutes. The sauce thickens slightly as bubbling stops, making servings easier to lift without leaving all the liquid behind.
Fresh parsley adds color but is optional. Add it after resting so it stays bright rather than wilting in the oven.
Troubleshooting
- Potatoes stay firm: Cut smaller, seal the foil well, and continue baking until the center cubes are tender.
- Sauce is lumpy: Whisk the soup, milk, and sour cream before assembly.
- Casserole is watery: Let it rest and measure the sauce ingredients accurately.
- Top browns too early: Cover loosely with foil while potatoes finish.
- Chicken feels dry: Use moderate shreds and make sure they are coated in sauce.
Serving Suggestions
This casserole already contains protein, potatoes, and vegetables. A crisp green salad or simple steamed greens add freshness without making the meal overly heavy.
Serve generous squares or spoonfuls while hot but not bubbling. Add black pepper or chopped parsley at the table rather than more rich sauce.
Make-Ahead Plan
Cook the onion-and-chicken mixture and whisk the sauce up to a day ahead, then refrigerate them separately. For the best potato color and texture, peel and cube the potatoes close to assembly.
A fully assembled refrigerated dish needs additional covered baking time because the ingredients begin cold. Confirm tenderness in the center rather than following the clock alone.
Storage and Reheating
Cool leftovers promptly and refrigerate them airtight for up to 4 days. Divide into portions before storage if you expect to reheat individual meals.
Warm covered in a 350°F oven until the middle reaches 165°F, uncovering briefly to refresh the cheese. Microwave portions in short intervals and stir or rotate for even heating.
Conclusion
Soften onion and garlic, stir in cooked shredded chicken and seasonings, and whisk soup, milk, and sour cream separately. Combine with potato cubes and frozen vegetables, bake covered at 375°F for 35 to 40 minutes, then add Colby Jack and bake uncovered 15 to 20 minutes.
Frequently Asked Questions
- → Can I use rotisserie chicken in this casserole?
Yes. Remove the skin and bones, shred 2 cups of meat, and reduce extra salt if the chicken is strongly seasoned.
- → Why are my potatoes still firm?
The cubes may be too large or the dish may have lost steam. Cover tightly and continue baking until center potatoes are tender.
- → Can chicken and potato casserole be assembled ahead?
Yes, but a cold assembled casserole needs extra oven time. Test potatoes in the center before adding the final cheese topping.
- → How long do leftovers keep?
Refrigerate cooled leftovers airtight for up to 4 days and reheat them to 165°F.