In the Freezer
If you’ve opened the watermelon and cut it into pieces, you can eat it right away (perhaps in a fruit salad, or on its own), but another option is the freezer. Freezing it in pieces will keep it edible for several months, and you can even make smoothies with it. Just blend the still-frozen watermelon with frozen banana slices.
Place the watermelon pieces, including seedless pieces, in a freezer bag and store them in the freezer. When you’re ready to eat them, let them thaw at room temperature.
