| 3-1/2 lb. tuna, in one piece, skin removed |
| 2 tablespoons chopped fresh coriander |
| 2 tablespoons cracked black peppercorn |
| olive oil, for shallow-frying |
| 2 eggplants, thinly sliced |
| 2 zucchinis, thinly sliced lengthwise |
| 1 red bell pepper, cut into thick strips |
| 1 green bell pepper, cut into thick strips |