Double-decker Vowelburgers™ -- 5 are meat, 1 is vegan

Question

^{Inspired by Avi's Vowelburger™ Riddle}
After making burgers with five and six layers, Vowelburgers™ has noticed that the customers have not been hungry enough to eat such massive burgers. We are therefore introducing Double-decker burgers so you can get layered burgers in smaller portions. Five of the new burgers are exotic meats, but one is just vegetables. A Double-decker Vowelburger™ means three consonant buns sandwiching two vowel patties as shown:

Here are the menu descriptions of the six new burgers:

Layer 1	Layer 2
rap	saint
double	heir
percent	fool
wheel	honey
crystal	boy
location	call

Can you identify each of these burgers from their descriptions? Which is the vegan one?

Notes:

• Each burger consists of a layer 1 and a layer 2 (in that order).

• Eating the Double-decker Vowelburger™ is like eating 2 regular Vowelburgers™ merged with each other; in other words, the top of the first layer is the bottom of the second layer.

• Both layers are regular Vowelburgers™ on their own.

Enjoy!

Answer 1

I think these words are

actually describing food, or things that could be food.

---

rap + saint

TAPIR (TAP = rap [on a door], PIR = Sufi master) - like tapir meat. Thanks @Stiv for the second half.

double + heir

BISON (BIS = twos, SON as heir) - like bison meat.

percent + fool

BACON (BAC = blood alcohol concentration or percentage of alcohol in the blood, CON = fool [as a verb])

wheel + honey

CAMEL (CAM = wheel, MEL = honey) - like camel meat.

crystal + boy

SALAD (SAL meaning salt crystal, LAD = boy). This is the vegan one.

location + call

MACAW (MAC addresses, CAW = call). Thanks @El-Guest for this one.