Take an eggplant, and make cutslongwise, allowing it all to stay attached at the stem end. Brush each side of these eggplant slices with oilve oil and any spices you also like in it (garlic, and/or basil, and/or oregano, etc). Then between each slice add some sliced tomatoes and onions. Package it all in foil, folding the ends so you can check on it. Then just placeit on the grill and let it stew. Remove it when the veggies all are softened. It is really delicious and pretty easy.