Using pastry blender, cut in butter into flour until it resembles a coarse meal. Add in cold water. Form dough and roll approximately 1/4 inch thickness, to the size of 6 inches pie plate. Prick crust with fork and bake until half cooked at 350 degrees F for 15 to 20 minutes. Cream cottage cheese and add diced ham and eggs and mix well. Pour filling unto crust and bake until toothpick inserted at the center comes out clean. Garnish with parsley and tomatoes if desired.