Monterey Jack

Monterey Jack, sometimes shortened to Jack, is an American white, semi-hard cheese made using cow's milk. It is noted for its mild flavor and slight sweetness. It has been called "an American original" and "as a vestige of Spanish rule in the early nineteenth century, derives from a Franciscan monastic style of farmer's cheese."
In addition to being eaten by itself, it is frequently marbled with Colby to produce Colby-Jack, or with yellow cheddar to produce "cheddar-Jack". "Pepper Jack" is a version flavored with chili peppers and herbs. "Dry Jack" is a harder cheese with a longer aging time.
Origins.
In its earliest form, Monterey Jack was made by 18th-century Franciscan friars of Monterey, Alta California. California businessman David Jacks sold the cheese commercially. He produced a mild white cheese that came to be known eponymously as "Jacks’ Cheese" and eventually "Monterey Jack". Other ranchers in the area likewise produced the cheese, among them Andrew Molera, who built a successful dairy operation in Big Sur and whose Monterey Jack was especially well regarded.
Aging.
Although most of the softer varieties found in American supermarkets are aged for only one month, "dry Jack" is a harder variety aged for up to six months.
Uses.
The cheese is commonly used as an interior melting cheese for California-style burritos, but also some Mexican-style burritos ("bean and cheese"). It can also be used on cheeseburgers or for grilled cheese sandwiches. It has a mild flavor and good melting quality for some pasta dishes.
Variants.
Dry Jack.
Dry Jack was created by accident in 1915, when a San Francisco wholesaler forgot about a number of wheels of fresh Jack he had stored. As World War I intensified and shipments of hard cheese from Europe were interrupted, he rediscovered the wheels, which had aged into a product his customers found to be a good substitute for classic hard cheeses like Parmesan.
Pepper Jack.
Pepper Jack is a derivative of Monterey Jack flavored with spicy chili peppers, bell peppers, and herbs.
Blends.
Additional flavor and visual appeal is created by marbling with Colby (making Colby-Jack) or a yellow cheddar cheese.
Headaches.
Because of its low content of tyramine, an organic compound thought to be associated with headaches, Monterey Jack is frequently recommended as one of the few cheeses that is safe to eat for migraine sufferers.