Use a fork or knife to pierce eggplants on all sides, and then place on top of grill.
Grill the eggplants until skin has wrinkled and darkened. Remove from grill and set aside to cool.
While grilling the eggplants, dice tomatoes and chop onions and place in a bowl.
Once eggplants have cooled, peel them carefully and remove as much skin as possible.
Place eggplants in the bowl together with tomatoes and onions. Toss salad and serve with Chinese Bagoong.