  | 
                          1 lb 5 oz (600 g) asparagus | 
                        
                      
                      
                      
                        
                            | 
                          1 medium size onion, finely chopped | 
                        
                      
                      
                      
                        
                            | 
                          1 garlic clove, finely chopped | 
                        
                      
                      
                      
                        
                            | 
                          1 – 1½ teaspoon lemon zest, approximately | 
                        
                      
                      
                      
                        
                            | 
                          1 – 1½ teaspoon lemon juice | 
                        
                      
                      
                      
                        
                            | 
                          7 oz (200 g) smoked salmon, sliced and cut in 2x ½ inch (5x1 cm) strips | 
                        
                      
                      
                      
                        
                            | 
                          1 lb 2 oz (500 g) fettucini |