(The crepes can be made up to 2 days ahead, covered with plastic wrap, and refrigerated until ready to use. If you wish, assemble several hours in advance and bake just before serving.)

1 1/4 c. buttermilk
1 c. whole wheat flour
4 lg. egg whites
Pinch salt
Nonstick cooking spray

1 tsp. olive or vegetable oil
1 medium size yellow onion, finely chopped (1 cup)
1 clove garlic, minced
1 medium size zucchini (6 oz.) quartered lengthwise and thinly sliced
3 tbsp. water
1 c. Ricotta cheese, drained in a sieve for 1 hour
1/4 c. grated Parmesan cheese (1 oz.)
2 lg. tomatoes, chopped (3 cups)
3 tbsp. tomato paste

To prepare the crepes; in a food processor or blender, combine the buttermilk, flour, egg whites and salt and whirl for 30 seconds or until well blended. Let stand at room temperature for 1 hour. Coat an 8 inch nonstick skillet with the cooking spray. Heat the skillet over moderately high heat. Pour a scant 1/4 cup of the batter into the skillet and quickly tilt to coat the bottom of the pan with the batter. Cook for 30 seconds to 45 seconds or until the underside of the crepe is cooked and lightly colored. With a spatula, turn the crepe over and cook 30 seconds longer. Transfer to a plate. Repeat with the remaining batter, placing sheets of wax paper between the crepes as you stack them. You should have 12 crepes.

To prepare the filling; in an 8 inch nonstick skillet, heat the oil over moderate heat. Add the onion and the garlic and saute, stirring frequently, for 6 minutes or until golden. Add the zucchini and water and cook, covered, 5 minutes more or until the zucchini is tender. Preheat the oven to 450 degrees. Lightly grease an 11 x 7 x 2 inch baking dish. In a medium sized bowl, combine the Ricotta cheese, 2 tablespoons of the Parmesan cheese and the zucchini mixture. Spoon 3 tablespoons of the filling onto a quarter section each crepe. Fold the crepe in half, then quarters, forming a fan shape.

In a medium sized bowl, combine the tomatoes and tomato paste. Spread 1/4 cup of the mixture in the bottom of the prepared baking dish. Place the filled crepes in a single layer on top and spoon the rest of the tomato mixture over them. Sprinkle with remaining 2 tablespoons Parmesan cheese. Bake for 20 minutes or until bubbling.

Serves 4.