4.) The Spaghetti Laboratory
3.) TGI McScratchy's Goodtime Foodrinkery
2.) The Texas Cheesecake Depository
and the no. 1...
1.) Professor P. J. Cornucopia's Fantastic Foodmagorium and Great American Steakery
of course, all from the Simpsons. absolutely brilliant. (and thanks to some random person out there who had them written down on a message board. i couldn't find them anywhere.)
and the bonus non-restaurant themed name:
The Mattel and Mars Bar Quick Energy Chocobot Hour