This cheesy green bean casserole swaps canned soup for a from-scratch cheese sauce, uses fresh green beans, and piles on crispy fried onions for a creamy, crunchy, and utterly delicious side dish that converts even the biggest skeptics.
For make-ahead: assemble casserole without top layer of onions, refrigerate up to 24 hours. Add 10 minutes to initial bake time, then add onions and finish. For extra crunchy topping, toast remaining onions on a baking sheet for 3-4 minutes while casserole rests. Shred cheese from a block for smoothest sauce.
Keywords: green bean casserole, cheesy green bean casserole, Thanksgiving side dish, kid-friendly, easy green bean casserole, from scratch, crispy onions