This classic green bean casserole is a staple at holiday dinners and potlucks. It's made with tender green beans, creamy mushroom sauce, and crispy fried onions. The green beans are blanched until tender and combined with the mushroom sauce, creating a creamy and flavorful filling. The mushroom sauce is made with sautéed mushrooms, onions, garlic, and a creamy base, adding a rich and savory flavor to the dish. Topped with a generous amount of crispy fried onions and baked until golden and bubbly, this casserole is a crowd-pleaser that's sure to be a hit at any gathering.
