Onion, Citrus and Tomato Salad Dec 31, 1999 INGREDIENTS:6 jumbo Idaho-E.Oregon yellow onions, thinly sliced (6 Ibs.) 24 leaves curly lettuce (1 lb., 4 oz.) 4 large navel oranges or grapefruit (2 Ibs.), peeled and cut into ½ inch slices 3 to 4 large beefsteak...