I recommend stuffed grape leaves to be cooked before they are frozen. The taste is much better when thawed! Simply cook, allow to completely cool, then place in freezer bag or freezer safe container. Drizzle with olive oil and place in freezer for up to six months.
To reheat grape leaves from freezer, allow to thaw completely in refrigerator. Then, simply steam them on the stove top (recommended) or cook in microwave (for a quick fix).