The "authoritative" sticky thread over on the Dining Plan Board lists the following for CHH:
Columbia Harbor House
fries $2.49
coleslaw $2.39
apple crisp $3.59
chocolate cake $3.59
strawberry yogurt $1.99
The listing may not be complete, but based on what is listed, the Clam Chowder at $4.49 (according to allears) may be priced a bit too high to qualify as a snack.