Spinach Salad

12 oz. baby spinach
1/3 lb. Swiss cheese, grated
1/2 cup cottage cheese
12-16 oz. bacon, sliced while partially frozen and cooked, drained
1 can mandarin oranges, drained well
Won ton skins, sliced and fried

Dressing: (Make a few hours ahead or night before)
In blender:
3/4 cup oil
1/3 cup vinegar
1/3 cup sugar
1/3 tsp. dry mustard
dash of salt

After blending, stir in:
3/4 tsp. poppy seeds
4-6 oz. fresh mushrooms, washed and sliced

Let dressing (with mushrooms) marinate a few hours or overnight.  Add to salad and toss immediately before serving. Serve salad fresh and cold.