I think that might actually win the thread as a viable recipe.
Wiki is full of shit. I have an original issue of the LP in front of me, and the lyrics are printed on the sleeve. It’s “mustard.”
Cowboy Junkies, “Cold Tea Blues”
If I pour your cup, that is friendship
If I add the milk, that is manners
If I stop there, claiming ignorance of taste
That is tea
But if I measure the sugar to satisfy your expectant tongue,
That is love;
Sitting untouched and growing cold
Frank Zappa and the Mothers of Invention’s “WPLJ”
“You take the bottle, you take the can
Shake it up fine, you get a good, good wine
White Port and Lemon Juice”
Bauhaus - 1. David Jay 2. Peter Murphy 3. Kevin Haskins 4. Daniel Ash
The Peter Murphy section has a “recipe” for fishcakes:
Etc.
Maybe, but if it is mustard, then the recipe’s not complete. It could hardly be a cheeseburger without any cheese, now could it?
Though then again, muenster would be a really odd choice of cheese for a burger. I’d expect something more like cheddar, especially for a traditional standard version like he seems to be describing.
How about Negativeland - Perfect Scrambled Eggs.
You’re probably not going to find anything that fits the OP closer than that!
Word of God good enough for you? …so when Jimmy sat on the edge of the stage and told us the story of how it got misheard, he was full of shit, too?
It’s a cheeseburger. I’d say you pretty much have to list the cheese to make that work, and Buffett is not a sloppy writer. A quirky one, yes, but not sloppy.
ETA: Muenster makes a great cheeseburger, by the way.
Margaritaville mentions salt and booze. Close enough
Master P’s “Ghetto D” (D for “dope”) contains instructions for making crack from cocaine.
In the same vein . . .
Great green gobs of greasy, grimy gopher guts
Mutilated monkey meat
Itty bitty birdie feet
All mixed up with vegetated vulture vomit
Swimming in eyeball soup (in eye ball soup!)
Fried ham fried ham
Cheese and bologna
And after the macaroni we’ll have onions, pickles and pretzels
And then we’ll have some more fried ham
Love Potion No. 9 doesn’t give the recipe specifics but it *is *about a cooked up concoction.
Oingo Boingo’s Weird Science is something like a recipe (it says so right in the lyrics :)) except the ingredients aren’t food but things such as plastic tubes and pots and pans.
Sing a song of sixpence,
A pocket full of rye.
Four and twenty blackbirds,
Baked in a pie.
Wow, is that new? Who’s the band? Has it been released yet?
My kid hates the taste of medicine; I figure a spoonful of something would sure help it go down in the most delightful way, but I’m stumped. Little help?
Nutella!
The lyrics are “Cheeseburger is paradise medium rare with mustard’d be nice”. That’s how I’ve always heard him sing it so that’s how I sing it. 
The old song we used to sing as a kid:
Gramma’s in the cellar
And you sure can smell ‘er
And she whistles as the (snort) runs down her nose …
And it’s drippin’ in the batter,
But it doesn’t really matter,
'Cause she whistles as the (snort) runs down her nose!
Down her nose! Down her nose!
And she whistles as the (snort) runs down her nose!
Understood.
Audio clip slowed down 3X. It’s pretty clearly “with Muenster’d be nice…” to my ear. “Mustard” makes no sense in the line, especially about a CHEESE burger, and “medium rare with mustard be nice” is even outside JB’s grammatical loosity.
Besides, I heard it straight from the man himself. Along with 28,000 other people.