How Much Tilapia for 3 People? A Guide to Perfect Portions
                                
                                
                                •
                                
                                
                        
                                    
                                    3 min read                                
                            
                                According to the Food and Drug Administration, one serving of cooked fish is typically 4 ounces, about the size of a deck of cards. To figure out how much tilapia for 3 people, it is important to consider whether the fish is for an appetizer or a main course, as well as the appetites of your diners.