This sheet-pan dinner is inspired by classic steakhouse sides: roasted mushrooms, creamy horseradish-mustard sauce, wilted spinach and roasted potatoes. Well, kind of. Instead of whole potatoes, this recipe uses store-bought gnocchi, a superspeedy stand-in that takes on the fun combination of browned and chewy when roasted. This dish is hearty enough to be a full meal, though it’d also make a great side to braised beans, roast chicken, a seared pork chop and, of course, steak. To get…
