To make this recipe gluten-free, use certified gluten-free frozen shredded hash brown potatoes.
Select a gluten-free cream of chicken soup, as many canned varieties contain wheat-based thickeners.
Confirm that the ranch seasoning, bacon, sour cream, butter, and shredded cheddar cheese are labeled gluten-free.
Use plain cooked chicken without marinades, breading, or seasoning blends that may contain gluten.
Prepare and bake the casserole with clean utensils, bowls, and baking dishes to prevent cross-contamination.