Chicken Bacon Ranch Gratin Potatoes with Cheddar Cheese

Prep: 20 minCook: 1 hr8 servingsmediumAmerican
Chicken Bacon Ranch Gratin Potatoes with Cheddar Cheese

A hearty comfort food casserole that combines tender cubed Yukon potatoes with seasoned chicken and crispy bacon in a rich ranch-flavored cream sauce. The dish is layered in a baking dish and topped with melted cheddar cheese for a golden, bubbly finish. Perfect for family dinners or potluck gatherings, this one-dish meal offers the classic flavors of chicken, bacon, and ranch in every bite. The creamy sauce infuses the potatoes while baking, creating a satisfying side dish or main course that pairs well with a simple green salad.

Ingredients

8 servings
  • 6 yukon potatoes, scrubbed clean and cubed
  • 2 cups chicken breast, cooked and chopped
  • ½ cup bacon, cooked and crumbled (divided)
  • ¼ cup unsalted butter
  • 1 yellow onion, thinly sliced
  • 1 clove garlic, minced
  • 3 tablespoons flour
  • 1 packet ranch seasoning, or 3 tablespoons homemade
    Italian seasoning1:1flavor_change

    completely different taste profile

  • 2 cups heavy cream
    half-and-half1:1lighterdairy-free

    reduces richness slightly

    Full guide →
  • 2 cups shredded Cheddar cheese, divided
    Gruyere cheese1:1upscale

    adds nutty flavor

    Full guide →

Instructions

  1. 1

    Preheat the oven to 400 degrees

  2. 2

    Cut the potatoes into 1 inch chunks

  3. 3

    Layer the potatoes, chicken and 1/4 cup bacon together in a greased 9x13 baking pan

  4. 4

    Add the butter, onion and garlic to a large heavy skillet on medium heat and cook for 5-6 minutes until translucent, stirring occasionally

  5. 5

    Add in the flour and ranch seasoning and whisk well until flour is completely absorbed

  6. 6

    Slowly pour in the heavy cream as you whisk the mixture and cook for 8-10 minutes until thickened

  7. 7

    Whisk in half the cheddar cheese until the cheese is melted

  8. 8

    Pour the mixture evenly in the baking dish

  9. 9

    Cover tightly with foil and bake for 30 minutes

  10. 10

    Uncover and cook for 20 minutes then top with remaining cheddar cheese and remaining 1/4 cup bacon

  11. 11

    Bake for 10 minutes then serve hot

Tips

Tip 1

Pre-cook chicken and bacon ahead of time to streamline assembly and ensure even cooking throughout the gratin.

Tip 2

Use Yukon potatoes for their creamy texture and natural buttery flavor that complements the ranch seasoning perfectly.

Tip 3

Let the gratin rest for 5 minutes after baking to allow the sauce to set before serving.

Good to Know

Storage

Refrigerate leftovers for up to 3 days in an airtight container

Make Ahead

Can assemble up to 1 day ahead and refrigerate before final baking

Serve With

Serve hot directly from the oven with a simple green salad

See pairing guide →

Common Mistakes

Watch

Don't skip covering with foil initially to prevent potatoes from browning before cooking through

Watch

Avoid adding cheese too early to prevent burning and separation

Substitutions

Dairy-Free Swaps

heavy cream
half-and-half1:1lighterdairy-free

reduces richness slightly

Full guide →

General Alternatives

Cheddar cheese
Gruyere cheese1:1upscale

adds nutty flavor

Full guide →
ranch seasoning
Italian seasoning1:1flavor_change

completely different taste profile

Full guide →
Find more substitutions →

FAQ

Can I use frozen potatoes instead of fresh?

Yes, but thaw and pat dry first. Cooking time may need slight adjustment as frozen potatoes release more moisture.

What if I don't have ranch seasoning packets?

Make homemade with dried dill, garlic powder, onion powder, dried parsley, salt and pepper in equal parts.

How long will leftovers keep in the refrigerator?

Store covered for up to 3 days. Reheat in 350F oven until warmed through, about 15-20 minutes.