Question: how big is 2 oz of spaghetti?
Answer: According to the USDA, the proper pasta portion is 2 ounces. If you're making longer noodles (think spaghetti, linguine, or fettuccine), you can measure the right amount by holding the pasta up to a quarter. Once a bunch of noodles equals the diameter of the coin, you have the recommended 2 ounces.