Baked Potato Chicken Broccoli Casserole (Printable)

Comforting casserole with tender chicken, potatoes, and broccoli in a creamy cheesy sauce.

# What You'll Need:

→ Meats

01 - 2 cups cooked chicken breast, cubed or shredded

→ Vegetables

02 - 4 medium russet potatoes, peeled and diced
03 - 2 cups broccoli florets, chopped
04 - 1 small onion, finely chopped
05 - 2 cloves garlic, minced

→ Dairy & Eggs

06 - 1 cup sour cream
07 - 1 cup shredded cheddar cheese (plus ½ cup for topping)
08 - ½ cup milk
09 - 2 tablespoons unsalted butter

→ Pantry & Seasonings

10 - 1 teaspoon salt
11 - ½ teaspoon black pepper
12 - ½ teaspoon paprika
13 - ½ teaspoon dried thyme

# How-To Steps:

01 - Preheat your oven to 400°F (200°C). Lightly grease a 9x13-inch baking dish with butter or cooking spray.
02 - Bring a large pot of salted water to a boil. Add diced potatoes and cook for 8–10 minutes until fork-tender. Drain thoroughly and set aside.
03 - While potatoes cook, place broccoli florets in a steamer basket over boiling water. Steam for 3–4 minutes until bright green and slightly tender. Remove and set aside.
04 - In a large mixing bowl, combine cooked potatoes, steamed broccoli, cooked chicken, chopped onion, and minced garlic. Toss gently to distribute evenly.
05 - In a separate bowl, whisk together sour cream, milk, melted butter, 1 cup shredded cheddar cheese, salt, black pepper, paprika, and dried thyme until smooth and well combined.
06 - Pour the creamy sauce over the potato, chicken, and broccoli mixture. Fold gently with a spatula until all ingredients are evenly coated.
07 - Transfer the mixture to the prepared baking dish, spreading it into an even layer. Sprinkle the remaining ½ cup cheddar cheese evenly over the top.
08 - Bake uncovered for 25–30 minutes until the casserole is bubbly around the edges and the cheese on top is golden brown.
09 - Remove from oven and let the casserole rest for 5 minutes before serving to allow it to set for easier scooping.

# Expert Advice:

01 -
  • Its the kind of dinner that somehow tastes even better as leftovers the next night
  • The creamy sauce hugs every single ingredient so nothing gets left behind on the plate
02 -
  • Overcooking the potatoes during the boiling stage makes them disappear into the sauce
  • The casserole might look jiggly straight from the oven but firms up as it rests
03 -
  • Grate your own cheese instead of buying pre-shredded for better melting
  • Let the roasted casserole sit at least 5 minutes or the sauce will be too loose