So Saturday night I had the grille heating, chopped up the Portabello mushrooms, Onions, and Peppers. Steak was marinated. And I ran out of propane. (Though I'll snag one of Ed's extra bottles this week so I shouldn't run out again :) )
So Sunday night I finally got to make this. I had experimented with pan searing the steak by heating the skillet in the grill, two minutes on a side. I had heated a pot of water on my stove so there wouldn't be thermal shock when I brought the skillet inside to saute the veggies as the steak finished grilling over medium.