That reminds me of when I lived in Houston. A few weeks after I moved there and got somewhat settled in, I went to a pizzeria and ordered a pizza pie, which is what we called pizza in NY. The Asian guy at the counter told me, "We no serve pie." I tried to order it a few more times but never did get my pizza. I was totally baffled.
And why is it that in NY, they have Texas weenies (hotdogs), but in Texas, they have Coney Island hot dogs? The grass is always greener...
Oh My Gosh..finally I learn something which has been baffling me for decades...
In Italy..and all of Europe and for this we include the UK..Pizza is called Pizza... there's no Pie in it at all...so when as a youngster and even since..I listen to Dean Martin Sing.. it used to confuse the heck outta me... I thought the writer just added 'pie' to make it rhyme...

In Napoli where love is king
When boy meets girl
Here's what they say
When the moon hits your eye like a big pizza pie
That's amore
When the world seems to shine like you've had too much wine
That's amore
Bells will ring, ting-a-ling-a-ling, ting-a-ling-a-ling
And you'll sing, "Vita bella"
Hearts will play tippy-tippy-tay, tippy-tippy-tay
Like a gay tarantella
When the stars make you drool just like a pasta e fasul
That's amore
When you dance down the street with a cloud at your feet
You're in love
When you walk in a dream but you know you're not
Dreaming signore
Scusa me, but you see, back in old Napoli
That's amore
When the moon hits you eye like a big pizza pie
That's amore (that's amore)
When the world seems to shine like you've had too much wine
That's amore (that's amore)
Bells will ring, ting-a-ling-a-ling, ting-a-ling-a-ling
And you'll sing, "Vita bella" (vita bella, vita bella)
Hearts will play tippy-tippy-tay, tippy-tippy-tay
Like a gay tarantella
Lucky fella
When the stars make you drool just like a pasta e fasul
That's amore
When you dance down the street with a cloud at your feet
You're in love
When you walk in a dream but you know you're not
Dreaming signore
Scusami, but you see, back in old Napoli
That's amore (amore)
That's amore