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Baked Potato Chicken and Broccoli Casserole

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This Baked Potato Chicken and Broccoli Casserole is the ultimate comfort food—tender chunks of chicken, fluffy baked potatoes, and fresh broccoli all smothered in a creamy cheese sauce and baked until golden. It’s easy to prep, makes great leftovers, and hits all the cozy dinner vibes!

Ingredients

Scale
  • 3 cups cooked chicken, chopped or shredded

  • 3 cups baked potatoes, peeled and diced (about 23 medium potatoes)

  • 2 cups broccoli florets, steamed until just tender

  • 1 cup shredded cheddar cheese (plus more for topping)

  • 1/2 cup sour cream

  • 1/2 cup milk

  • 1/4 cup cream cheese, softened

  • 2 cloves garlic, minced

  • 1/2 teaspoon onion powder

  • Salt and pepper, to taste

  • 1 tablespoon olive oil or butter (for sautéing garlic)

  • Optional toppings: cooked bacon bits, green onions, extra cheese


Instructions

  • Preheat oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.

  • Sauté the garlic:

    • In a small skillet, heat olive oil or butter over medium heat.

    • Add garlic and cook for 1–2 minutes until fragrant. Remove from heat.

  • Make the creamy base:

    • In a large bowl, mix together the sautéed garlic, sour cream, milk, cream cheese, onion powder, salt, and pepper. Stir until smooth.

  • Combine the ingredients:

    • Add the cooked chicken, diced baked potatoes, broccoli, and 1 cup of shredded cheddar cheese to the bowl.

    • Mix gently to coat everything in the sauce.

  • Assemble the casserole:

    • Pour the mixture into the prepared baking dish.

    • Top with extra cheddar cheese (and bacon bits, if using).

  • Bake:

    • Bake uncovered for 20–25 minutes, or until the casserole is hot and bubbly and the cheese is melted and golden.

 

  • Serve:

    • Let cool slightly, then top with chopped green onions if desired and serve warm.

Notes

  • Use rotisserie chicken or leftover baked potatoes for a shortcut.

  • Swap sour cream for Greek yogurt for a lighter version.

  • Want it extra cheesy? Mix in some mozzarella or pepper jack!