I feel compelled to point out that I left for the bathroom before the stove was lit and the fire broke out and returned from having a shower after it was extinguished.
The gas was lit. Somehow the plastic plates were too close to the burner.
The plates caught fire.
Cathie put the fire blanket (that comes with the campervan over the flaming plates). This wasn't successful at putting out the fire. So she used the fire extingisher and put blue powder everywhere but successfully extinguished the fire.
When I got back everyone was up with stories to tell.