Wash the rice in cold water until the water runs clear, about 3 times.
Soak it in room temp water for 30 minutes. Drain and set aside.
Cut the ends of the zucchini and core them until thin, but not pierced. Save the core.
Transfer the cores to paper towels or a cheese cloth and squeeze out all the liquid.
To a food processor, add the garlic, tomatoes, green onions and parsley. Process until finely chopped.
Transfer the mixture to a bowl, and add 1.5 cups of the zucchini cores along with all the seasonings, only adding 1 tablespoon of the dried mint.
Add the drained rice and the ground beef and mix well.
Stuff the zucchinis equally, and layer them in your pot.
Add the hot water, and let it boil for 10 minutes before simmering on low heat for 15 minutes.
After 15 minutes are done, add the tomato sauce and remaining dried mint.
Adjust for salt, and let them simmer for another 10 minutes or so before serving.