Wash and cut lettuce and chill in refrigerator to crisp.  Steam asparagus 3-4 minutes.  Cool asparagus with cold water and cut into 1-inch pieces; set aside. 

Cook bacon and crumble.  Cut tomatoes into chunks.  Grate cheese. Combine lettuce, asparagus, bacon and tomatoes. 

To prepare dressing, combine oil and remaining ingredients in a jar.  Cover tightly and shake vigorously.  Chill several hours before serving. 

Toss salad with dressing to taste.  Sprinkle shredded Gouda on top.