I made this for my family and we all really enjoyed this very much. I also could not find any halibut so I used one large piece (about .65 lbs) of Orange Roughy and cut the cream cheese in half.
It was enough to feed a family of two adults and 2 toddlers which I served with a salad, steamed broccoli and some corn on the cob. Also, I used larger cooked cocktail shrimp and cut them in half. I found it helpful to mix the cream cheese with the basil, salt and pepper FIRST since I had a hard time incorporating the shrimp without damaging it. I just stuffed the cream cheese mixture with the shrimp randomly and it came out great! Thanks for this recipe. We will definitely be making this again!