Happy birthday to you
mashed potatoes and stew,
bread and butter
in the gutter.
Happy birthday to you.

Yes:

Happy birthday to you,
Squashed tomatoes and stew,
Bread and butter
In the gutter,
Happy birthday to you.

hello, anne (gb)! (just 43 seconds between us...)

hein: Yeah. Let's award ourselves a fat Synchronpunkt and go off to the pub. Mine's a large red wine. Have a good WE!

Happy birthday to you,
You live in a zoo.
You look like a monkey,
And you smell like one too.

...is what I remember from my childhood. (AE)
Obviously, it doesn't have the food theme...but I thought it was worth posting.

Happy Birthday to you
Squashed bananas and stew
You look like a monkey
And you act like one too!

That was the version the kids sang at my school.

Ha! Thanks for psoting that. Haven'T heard it in a long time.

@Benson: That was another close one. The NZ version seems to combine the food theme with the monkey theme (and what do monkeys eat...?)

Another monkey version:
Happy birthday to you
I went to the zoo
I saw a big monkey
And I thought it was you.

Just to add the mninor monkey variant I know and my 5-year-old has sung at least once a day since we recently celebrated a couple of birthdays in the family:

Happy birthday to you,
Squashed tomatoes and stew.
You look like a monkey,
And you live in the zoo.

Happy birthday to you,
You live in a zoo.
You look like a monkey,
And you act like one too.

So kenn ich das. Und dann gab's noch:

Happy birthday to you,
Stick your head in the loo.

Aber weiter weiß ich leider nicht mehr, sorry!