Microwave Brocolli-Mushroom Scallop

A weeknight broccoli side that leans on the microwave for every step, no oven or stovetop required. Florets steam in a covered casserole with a splash of water, mushrooms soften in butter in a measuring cup, and the cheese sauce thickens in the same bowl the mushrooms just vacated.

Microwave cheese sauce has a reputation for curdling, but this one works because the flour goes into the butter-mushroom mixture dry, gets toasted briefly, then milk is added and the whole thing microwaved in short bursts with a stir each minute. The stirring keeps the sauce from breaking or forming a skin, and the gradual heating produces a smooth bechamel without the risk of scorching on direct heat.

Sharp cheddar is the right choice. A mild cheese disappears into the white sauce, while a very old sharp variety punches through and balances the earthiness of the mushrooms. Sprinkled over the broccoli and blasted for another few minutes, the cheese melts into a bubbly, spoonable sauce that clings to each floret.

Kitchen Tips

• Cut broccoli into uniform 2-inch pieces so they cook at the same rate. Big stalks left whole stay crunchy while small florets turn mushy.
• Stir the milk into the flour-mushroom mixture gradually to avoid lumps. A whisk works better than a spoon here.
• Microwave wattages vary. Check doneness at the lower end of each time range and add 30 seconds at a time.
• Serve immediately. Microwaved cheese sauce stiffens fast as it cools.

Variations

• Swap broccoli for cauliflower, Brussels sprouts, or a mix of both.
• Add crumbled cooked bacon or diced ham for a heartier side.
• Top with breadcrumbs and a final microwave blast for a crunchy lid.