Find a book. Any book. In fact, find a really BAD book. Now, just write a bunch of songs that don't have anything to do with anything and parade it from the page to the stage!
Crank out a sentimental 1950's musical revival. Audiences haven't changed much in the last 50 years anyway.
If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.