Return the pan to the burner over medium-high heat.  Add ¼ cup water.  As it begins to boil, add a small handful of the spinach.  Cook and stir just until it begins to wilt.  Then push it to the side of the pan, and add another ¼ cup water and handful of spinach.  Continue until all the spinach has been cooked, adding the raisins with the last handful of spinach.