Lettuce Place drained asparagus spears in a flat casserole dish with a cover. Mix olive oil, pickle liquid, pickles, and garlic; pour over the asparagus. cover and let marinate for at least 1 hour before serving; drain. Serve on lettuce. Food Exchanges per serving: 1 VEGETABLE EXCHANGE + -20ºC AT EXCHANGES. (Again it calls for half cup oil, but cut back on the fat to make it at even less then -20ºC at exchange.) SOURCE: Southern Living Magazine, sometime in 1973. Typed for you by Nancy Coleman.