Preheat oven
to 425 degrees. Spray a 10-inch skillet with vegetable oil and place the skillet
in the oven. In a large bowl, whisk the eggs, egg whites, milk and vanilla.
Add flour and salt and stir to combine. Remove the skillet from the oven. Pour
batter into the skillet and bake for 15-20 minutes, until it is puffed and the
edges are browned and crisp. Remove from oven, sprinkle with lemon juice and
sift over confectioners' sugar to taste. Fill the center with diced melon and
serve immediately. Serves 4.