This is one of my family's favorite casserole. I used to add double the crackers and butter, until one day my husband informed me (after serving it numerous times like that) he did not like all the crackers. It made it too rich. Over time I have compromised with him and added 1 1/2 cracker mixture (this is the amount I included in the following recipe). You could add shredded hashbrowns at the bottom or mix in broccoli for a complete meal.