We use Every Part of the Dragon

So, you've killed yourself a dragon (Ahem). Or maybe it's a sphinx. Now, you are going to want to do something with the carcass. It is well known what happens when you roast a dragon's heart, but what about the rest of it?

Sigurd sucks his burnt thumb, while Reginn sleeps. 
Carvings from the Hylestad Stave Church, photographs by Wikipedia.

Conditions: you must be the first person to taste of the dragon's heart (or other organ). If a beast larger than an ear of wheat tastes even a little of it before you do, they gain the powers mentioned below. Only one person may gain such powers from the organ in question. It must be roasted over an open fire. 

No part of a dragon prepared thus is actively poisonous, but the consumption of large quantities of dragon will cause severe (not to say fiery) indigestion.

You roast and eat....	You can now...	You might learn about...	But generally in the form of....
The Dragon's Heart	Understand the speech of the birds	Threats to your life	A smooth, unhurried radio newsreader
The Dragon's Lungs	Understand the voices of the wind	Adverse weather conditions	Hymns with too many verses
The Dragon's Liver	Understand the distant booming of the earth and rocks	Civil engineering	Blank verse
The Dragon's Stomach	Understand the speech of mammals	Threats to your sanity	A precisely-worded sermon
The Dragon's Kidneys	Understand the songs of the rivers and streams	Direct routes downhill	Patter songs
The Dragon's Intestines	Understand the creaking chorus of the trees	Threats to the environment	A local government meeting
The Dragon's Brain	Understand the speech of Dragons	Gold prices	Light opera
The Dragon's Spleen	Understand the eternal dialogue of fish	Shipwrecks	Sardonic, quip-heavy remarks
The Dragon's Pancreas	Understand the sibilant speech of reptiles	Sources of information and fresh fruit	Compact, smug, maxims
The Dragon's Sparkgland	Understand the dry monologue of flame	Things around the fire that you can't see	A theatre review

The Gods do not smile upon mixed grills or kebabs. You eat one organ at a time. Do not add any sauces or seasoning to the cooked organ, other than perhaps a little salt. 

It is generally thought that anyone who can accomplish the feat of slaying a dragon will be able to procure a suitable set of butcher's knives to joint the beast with relative ease.

An image from the 2015 film Tale of Tales. 

Successful dragonslayers dispute the proper drink to accompany the dish: answers vary from 'Mead' to 'Fresh stream water'. Some suggest 'Two healing potions, one drunk quickly before you eat, the other sipped slowly afterwards'. Perhaps the most popular response is 'Anything you can get your hands on'.