Place your frozen Gardein Classic Meatless Meatballs into a bowl, and add a very shallow (a few millimeters) layer of water to the bottom. Microwave for two minutes on high. Once done, let sit for 30 seconds and then cut each meatball into three round slices.
Preheat a non-stick frying pan while separating your egg whites. Beat the egg whites until fluffy and add to the pan, swirling to spread the egg whites evenly. Season with oregano, basil, garlic, and salt & pepper and cook for two to three minutes, or until firmly set.
Put your bread into the toaster and toast until golden brown.
Finally, assemble the sandwich: put the egg whites on top of the bread, then add tomato sauce and sliced Gardein Classic Meatless Meatballs. Sprinkle with parmesan cheese, and enjoy!