Cook spinach as directed on package. Place spinach in a paper tole or cheesecloths. Squeeze to drain out excess water.

In a large skillet, over medium-high, melt 2 tbs of butter in a pan. Add onion and mushrooms. Cook till mushrooms and onions have browned. Mix in spinach, ¼ teaspoon of salt and pepper. Set aside.

Add flour, milk, water, ¾ teaspoons of salt, eggs, and 3 tbs of melted butter into a blender. Blend till mixture is smooth and well blended.

Heat a nonstick pan, with an 8-10" diameter, over medium to high heat. Spray with nonstick spray. Pour ¼ cup of batter into the center of the pan and swirl to spread evenly. Cook for 40-60 seconds, or until the bottom has browned and flip. Cook for another 20-30 seconds.

Sprinkle with 2 tbs of Swiss cheese. Spread 2 spoon fulls of the mixture on half of the creep. Fold in half, fold in half again to make a triangle.