Prepare a medium-hot grill (if cooking indoors, preheat a cast-iron sauté pan until it is very hot). Arrange the onion and tomato slices in one layer on a cookie sheet or in a roasting pan, and ...

Laap pla duk, a Thai catfish salad, is the inspiration for this flavor-packed dish of flaked bluefish fillets tossed with fish sauce, lime juice, spicy red Thai chiles, and fresh mint and cilantro.