This is great to take to a picnic as a side dish - you can transport it in a plastic baggie with the marinade and it is served at room temperature - fat-free, too!
1 pound fresh pencil thin asparagus, ends trimmed
2 tablespoons aged Balsamic vinegar
1 teaspoon garlic salt
Steam asparagus either in the microwave or in a steamer until bright green but still crisp. Drain, and sprinkle with the Balsamic vinegar and garlic while still hot. Let cool to warm/room temperature. This is so good that it is hard to believe it has only three ingredients.