This Brussels sprouts gratin pairs roasted sprouts with creamy Gruyère, crisp bacon, and a golden breadcrumb topping for a Thanksgiving side you can prepare ahead. Roasting the sprouts first helps keep the casserole from turning watery.
Essential Concepts
Roast sprouts first; assemble ahead and bake before serving.
Related: [Thanksgiving side dishes](/thanksgiving-side-dishes) · [Make-ahead Thanksgiving sides](/make-ahead-thanksgiving-sides)
