DRAIN spinach, pressing between layers of paper towels.
In a large mixing bowl, COMBINE spinach, artichoke hearts, mushroom soup, sour cream, green onions, flour, parsley and Worcestershire.
In a skillet, MELT butter; MIX sliced mushrooms, garlic, lemon juice and pepper; SAUTE for five minutes.
COMBINE sauteed ingredients into spinach mixture; STIR in one cup of cheese.
Lightly GREASE an 11 X 7-inch baking dish; SPOON in spinach mixture; SPRINKLE with remaining cup of cheese.
BAKE at 400 F until done, about 35 minutes.
Per Serving (excluding unknown items): 351 Calories; 20g Fat (48.5% calories from fat); 12g Protein; 36g Carbohydrate; 11g Dietary Fiber; 20mg Cholesterol; 1612mg Sodium. Exchanges: 1/2 Grain(Starch); 3 1/2 Vegetable; 0 Fruit; 0 Non-Fat Milk; 4 Fat; 0 Other Carbohydrates.