Spinach Salad

1 pkg. fresh spinach, torn into pieces
1 - 4oz. can water chestnuts, sliced
5 strips bacon, cooked crisp and crumbled
2 hard cooked eggs, chopped
1 can bean sprouts, drained
1 c. salad oil
3/4 c. sugar
1/4 c. vinegar
1/3 c. catsup
2 tsp. Worcestershire sauce
1 med onion, chopped fine

Layer ingredients in a salad bowl; add dressing and toss well just prior to serving to serving.