I just made a banana pan cake this morning and the taste was too strong. Perhaps my portions are wrong?

Earlier this week I made potato pancake and the taste was too “potatoey” and today its too “banana” concentrated.

My recipe as follows: 1) milk 2) egg 3) flour 4) salt 5) butter

Then smash my banana or my hash brown into the mix and then fry.

In both cases it didn’t turn out well. It was either too much potato that is bitter or too banana sweet taste.

What could be the problem? Maybe I am not adding enough flour or milk to the mix?

Thank you

bon appetit