preheat your oven to 350 degrees. melt 1/2 of butter in a large skillet. add crab meat to skillet and gingerly saute for 2 to 3 minutes. remove the crab meat. leave all the liquid in the skillet. saute the green onions, spinach and zest for a 2-3 minutes. remove mixture from skillet. melt the remaining butter. stir in flour, salt & pepper. once well blended, add half & half, cream cheese, half of the shredded cheese and the remaining ingredients. make sure you melt the cheese.