After you blanched the okra, take a knife and chop them horizontally to create small chunks of okra. If you like them served in strips, you can cut them vertically, instead. Keep the seeds intact, no matter which cut you prefer.
Place the okra pieces on a tray covered with a baking sheet, creating a single layer of okra over the sheet. Keep a little distance in between each piece.
Now flash freeze the okra by putting the tray in the freezer for about an hour. The pieces should become firm and slightly icy but not completely covered with frost.
Take out the tray after an hour and transfer the frozen okra into reusable freezer bags. Make sure you squeeze out all the air and seal the bags properly.
Put the bags in the freezer. You can also label them with the date.