3 fish wilted Recipes

watercress (2 qt.), fat-trimmed beef sirloin, about 3/4 inch thick, lime juice, fish sauce or soy sauce, sugar, coarse-ground pepper, vegetable oil, onion (6 oz.), peeled and thinly sliced, garlic, peeled and minced, salt

thick fish fillets with skin (such as salmon or black sea bass), coarse kosher salt, olive oil, divided, garlic cloves, finely chopped, head of escarole, coarsely chopped (about 8 cups packed), sherry wine vinegar, divided