Can I use a different cheese instead of Cooper Sharp?
Yes. Provolone, American, or Cheez Whiz are common substitutes, though Cooper Sharp has a sharper, tangier flavor that defines the traditional version.
How do I get the ribeye shaved thin?
Ask your butcher to slice it thin (1/8-inch), or freeze the steak for 1–2 hours beforehand to firm it up for easier slicing at home with a sharp knife.
Should I cook the mushrooms and onions ahead of time?
Yes. Grilling the onions and cooking the mushrooms 10–15 minutes before assembly keeps them warm and ready to layer onto the hot meat without cooling it down.
What's the best way to melt the cheese?
Layer the cheese on the hot meat immediately after cooking, then cover the skillet or griddle with a lid for 30–60 seconds to trap steam and melt it evenly.
Can I make this on a griddle instead of a skillet?
Absolutely. A flat griddle is ideal for cooking shaved ribeye and vegetables in one pass, making assembly faster.