Serves6 (main course)
                    
                
                
                    
                        
                            - Active time:10 min
 
                        
                            - Start to finish:25 min
 
                        
                    
                
             
            
            
                
                
                
    
      
          
          
          
              
              
              
          
          
          
          
          
              
              
              November 2005
            
          
          
      
  
                
                
            
            
            
                The hearty greens in this dish retain a bit of their pleasing crunch.
            
            
            
            
            
                
                    
                    
                    
                        
                            
                            
                            
                                
                                    
                                        - 
                                            1
                                            lb
                                            penne rigate
                                            
                                        
 
                                    
                                        - 
                                            3
                                            tablespoons
                                            unsalted butter
                                            
                                        
 
                                    
                                        - 
                                            3
                                            tablespoons
                                            olive oil
                                            
                                        
 
                                    
                                        - 
                                            1/4
                                            cup
                                            pine nuts (1 1/4 oz)
                                            
                                        
 
                                    
                                        - 
                                            1
                                            teaspoon
                                            chopped garlic
                                            
                                        
 
                                    
                                        - 
                                            2
                                            
                                            (8- to 10-oz) bags mixed salad greens with radicchio (often labeled “Italian” or “Mediterranean”; 16 to 20 cups)
                                            
                                        
 
                                    
                                        - 
                                            1/2
                                            teaspoon
                                            salt
                                            
                                        
 
                                    
                                        - 
                                            1/2
                                            teaspoon
                                            black pepper
                                            
                                        
 
                                    
                                        - 
                                            1/2
                                            cup
                                            finely grated Parmigiano-Reggiano (see Tips), plus additional for serving
                                            
                                        
 
                                    
                                
                            
                         
                    
                 
            
            
            
            
            
            
            
            
                
                    
                    
                    
                        
                            
                                
                                
                                
                                    
                                        - 
                                            
                                            
Cook penne in boiling salted water in a 5- to 6-quart heavy pot (
see Tips) until al dente or according to package directions, then drain in a colander.
 
                                         
                                    
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Combine butter, oil, and pine nuts in cleaned and dried pot and cook over moderately high heat, stirring, until nuts are pale golden, about 3 minutes. Add garlic and cook, stirring, until garlic is golden, about 1 minute. Stir in greens and cook, stirring, until they wilt, about 3 minutes. Add penne, salt, and pepper and toss to coat. Stir in cheese and serve immediately with additional cheese on the side.
                                         
                                    
                                
                             
                        
                    
                    Cooks’ note: To reduce the start-to-finish time, cook the nuts, garlic, and greens in a separate pot while you boil the pasta.