You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.

Category: CAFETERIA 
Clue: It's a good day to warm up with a bowl of this thick hearty vegetable soup, from the Italian for "something served"
minestrone

Category: U.S. BODIES OF WATER 
Clue: You'll find the Big Branch National Wildlife Refuge on the shore of this big lake in Louisiana
lake pontchartrain

Category: LET'S EAT 
Clue: Some soldiers might say it stands for "yuck!", but "MRE" stands for this in the army

a meal ready to eat