Food Prude
Someone who is completely unwilling to experiment with or eat unusual and unique types of food.
M: OMG, you should totally try these sweetbreads. They are incredible!

N: Um, I've never had them before - what are they?

M: Delicious fried animal parts, like pancreas and thymus gland!

N: That is gross! No way, I will never try your sweetbreads.

M: Whatever. You, my dear, are SUCH a food prude.