Filling for Stuffed Chicken Breast I was wondering what taste good as a filling for chicken breast. I want to make kind of chicken breast pockets by almost cutting through the chicken breast but keeping both sides still together to fill. Then I will fill it and close it with some string or tooth picks. That's very much for any suggestions!
There are a few classics:

Chicken Cordon Blue - Ham and swiss

Chicken Kiev - tarragon, garlic, parsley, butter, etc.

You can use spinach and cream cheese, spinach and bacon, spinach and ricotta.  Mushrooms with different cheeses, there are a ton of different things.

Try this:

google.com

and search:

different types of stuffed chicken breast