How many calories are in a Marks and Spencer egg and cress sandwich?
                                
                                
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                                    5 min read                                
                            
                                According to official M&S nutritional information, a standard Marks and Spencer egg and cress sandwich contains 438 calories per pack. This classic lunch item, made with free-range eggs and fresh watercress on malted brown bread, is a popular choice for many shoppers.