Preheat a grill to medium high. Toss 1 1/2 pounds sliced summer squash and 1 sliced onion with olive oil, salt and pepper. Grill 3 to 5 minutes per side. Toss with more olive oil, the zest and juice of 1 lemon, and some chopped parsley and mint. Top with shaved ricotta salata.
Photograph by Antonis Achilleos