I've been obsessed with recreating that classic New England lobster roll experience in my kosher kitchen, and after years of experimenting, king oyster mushrooms turned out to be the perfect solution. These thick, meaty stems have this incredible ability to mimic the texture of lobster when prepared correctly, and they soak up flavors beautifully without overwhelming the delicate balance you want in a good roll. The key to making this work is treating the mushrooms with respect. You can't just chop them up and expect magic to happen. I slice the stems into thick medallions, then score them in a crosshatch pattern before pan-searing. This creates those lovely caramelized edges while keeping the interior tender and just slightly chewy, exactly like fresh lobster meat. Old Bay seasoning does most of the heavy lifting for that authentic seafood flavor, but I add a touch of kelp powder if I have it on hand. What really makes this dish shine is keeping everything else traditional. Buttery brioche rolls get a light toast, crisp lettuce adds crunch, and a simple mayo-based dressing lets the mushroom flavor come through. I learned the hard way that overdressing kills the whole experience. You want just enough to bind everything together without creating a soggy mess. These rolls work perfectly for summer entertaining when you want something special but don't want to spend hours in the kitchen. I serve them alongside some crispy potato chips and maybe a pickle spear, just like you'd get at any decent seafood shack. They're also great for Shabbat lunch when you want something a little different from the usual fare.