Lightly coat a 15x10x1-inch baking pan with cooking spray; set aside. For omelet, in a medium bowl beat together eggs, water, garlic salt, and pepper with a fork until combined but not frothy.
Place the prepared baking pan on an oven rack. Carefully pour egg mixture into the pan. Bake in a 400 degree F oven about 7 minutes or until egg mixture is set but is still glossy and moist.
Meanwhile, for filling, place a steamer basket in a medium saucepan. Add water to just below bottom of steamer basket. Bring to boiling. Add the shredded broccoli to steamer basket. Cover and steam for 2 to 3 minutes or until heated through. Drain well. Stir in oregano.
To serve, cut the omelet into six 5-inch squares. Divide the filling among omelets, spooning over half of each square. Fold the other omelet half over the filled half, forming a triangle or rectangle. Spoon the warm pasta sauce over omelets. Makes 6 servings.