Just make it J! Sounds good to me. Sear the ribeye over a chimney for about 2 min per side. Cool to room temp then slice very thin. I would not use a tomato based sauce though. A garlic, Bechamel would work very well with that combo. Or you could just use a relly good olive oil, and butter on the crust, both go with a white pizza theme. White pizza really lets the toppings come through. Put the horseradish in the sauce, oil/butter combo. You will want to pre grill the asparagus and shrooms at least 1/2 way to remove some of the water in them, esp the shrooms. I'd put some caramelized onions on too. Add fresh basil leaves right after you pull it out of the WSM, grill, or oven. HTH
