Step 1

Place the chopped onion in a small bowl, cover with vinegar and salt, and stir. Let sit for 15 minutes.

Step 2

In the meantime layer the meat onto two individual salad plates, in one layer.

Step 3

Place the greens and melon in a salad bowl, and dress with the olive oil, marinated onions and as much of the vinegar as you want to taste. Toss, adjust for taste, and divide over the two plates.