Combine water, gelatin and lemon juice in blender container. Process on low speed 1 to 2 minutes to soften gelatin.
Add hot milk, processing until gelatin is dissolved. Add egg substitute, sugar, vanilla and cottage cheese to blender container. Process on high speed until smooth.
Pour into 9-inch pie plate or round flat dish. Refrigerate 2 to 3 hours. If you wish, top with grated lemon zest just before serving.