Hate creamy casseroles? This spin on traditional green bean casserole isn’t just lightened and faster. It comes out tasting like a hearty roasted vegetable dish with the perfect balance of tenderness and crisp. The mushrooms and onions are nicely softened rather than mushy, and everything comes together thanks to the crunch and slight saltiness from the fried onions. It also makes a great, quick side dish for a weeknight.