Sour Cream Beef Casserole - by : mdorsett This is a Weight Loss Surgery recipe. It can be modified by substituting 1/2 the sour cream with greek yogurt to increase the protein content and reduce the fat content. You can also add protein powder to increase the protein content.     Cals. / serving : 216        % from fat : 33        % from carbs : 31        % from protein : 31