Spinach Salad

Submitted by: Adrienne Jacobs

Dressing:
(Marinate overnight and pour over salad just before serving. It only takes half for each salad.)
1 ½ Tbsp. poppy seeds
¾ c. red or white vinegar
1 ½ Tbsp. grated or dry onions
1 ½ c. oil
½ c. sugar
1 ½ tsp. salt
¾ tsp. dry mustard

Salad:
1-2 pkgs. fresh spinach leaves
1 head iceberg lettuce
1/2 lb. grated Swiss cheese
1/2-1 lb. bacon fried and crumbled
1 small red onion sliced in rings
¾ lb. fresh mushrooms sliced