Slice the eggplant thinly and sprinkle with salt. Let it sit for 10 minutes.
Pat the eggplant dry with a kitchen towel to remove moisture.
Heat olive oil in a pan and grill the eggplant slices on both sides until golden brown.
Place the grilled eggplant on a plate.
Slice the cherry tomatoes and onion.
Put the vegetables on top of the grilled eggplant.
Make the dressing with olive oil, balsamic vinegar, salt, and pepper.
Pour the dressing over the salad to finish.