What ingredients make up a Hawaiian burger and a Texas burger?

I recently started working in the kitchen for a local snack bar, and noticed that they have named their burgers after places.

I am curious to know, if what we call a Hawaiian Burger here in Spain, is also known as a Hawaiian burger in Hawaii, and if what we call a Texas burger, would be called a Texas Burger in Texas.

What ingredients go in a Hawaiian burger?

What ingredients go in a Texas burger?

What ingredients go in a Taj Mahal burger?

Please also state if you live in or have ever visited Hawaii, Texas or the Taj Mahal or India, and if you had a burger there.

Are cows not sacred in India? I have my doubts about this 100% beef Taj Mahal burger.

Thanks.