How to Make Chicken Hashbrown Casserole
Step 1: Preheat and Prep Your Pan
Start by heating your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish and set it aside.
Step 2: Make a Homemade Cream Sauce
In a medium saucepan, melt the butter over medium heat. Sauté the diced onions for 3–4 minutes, until soft. Add the flour and stir continuously for about 1 minute to cook out the floury taste.
Slowly whisk in the milk to form a smooth sauce. Once thickened (this takes about 3–5 minutes), reduce heat to low and mix in sour cream, garlic powder, onion powder, salt, and pepper. Stir until the sauce is silky and well blended.
Step 3: Combine Everything
In a large bowl, mix together the thawed hashbrowns, cooked chicken, 1½ cups of cheddar cheese, and your homemade cream sauce. Stir gently to ensure everything is evenly combined.
Step 4: Layer the Casserole
Spread the mixture evenly into the prepared baking dish. Sprinkle the remaining ½ cup of cheese over the top. If you’re using a crunchy topping, mix the crushed cornflakes or breadcrumbs with a tablespoon of melted butter and sprinkle that over the cheese layer.
Step 5: Bake Until Golden
Bake the casserole uncovered for 40–45 minutes, or until the cheese is bubbly and the top is golden-brown. If you’ve added a topping, it should be crisp and lightly browned.
Step 6: Cool Slightly and Serve
Let the casserole rest for 5–10 minutes before serving. This makes it easier to cut and enhances the texture. Sprinkle with fresh parsley for a pop of color and freshness.
Easy Variations & Add-Ins
Add some heat: Mix in diced green chilies, jalapeños, or a dash of cayenne pepper.
More veggies: Toss in frozen corn, peas, or even some lightly steamed broccoli.
Different cheeses: Blend in Monterey Jack, mozzarella, or pepper jack for variety.
Final Thoughts
This Chicken Hashbrown Casserole is more than just a dinner—it’s comfort in a dish. With creamy sauce, golden potatoes, tender chicken, and melty cheese, it’s the kind of meal that feels like home. Plus, it’s freezer-friendly and easy to customize, so it fits into any busy schedule or taste preference.