COMBINE sour cream, mayonnaise, green onions, lemon juice, salt, dillweed and waterchestnuts; STIR well.
ADD spinach; STIR well; COVER; CHILL thoroughly.
TRIM core end of cabbage to form a flat base; CUT a crosswise slice from top of cabbage, removing about 1/4 of head; LIFT out enough inner leaves to form a shell about one inch thick.
SPOON dip into cavity of cabbage.
Serve dip with assorted fresh vegetables.
Per Serving (excluding unknown items): 2339 Calories; 137g Fat (45.8% calories from fat); 145g Protein; 220g Carbohydrate; 140g Dietary Fiber; 153mg Cholesterol; 4980mg Sodium. Exchanges: 1 1/2 Grain(Starch); 0 Lean Meat; 37 Vegetable; 0 Fruit; 1 Non-Fat Milk; 17 1/2 Fat; 0 Other Carbohydrates.