Heat oven to 400¡. Grease 10 inch pie plate. Mix crabmeat, cheeses, and onion in plate. Beat remaining ingredients until smooth. Pour into plate. Bake until knife in centre comes out clean 35 to 50 minutes. Cool for 5 minutes.
Per serving: 1944 Calories; 119g Fat (55% calories from fat); 111g Protein; 106g Carbohydrate; 1144mg Cholesterol; 3843mg Sodium