Cheese can be melted by placing it in a microwave safe dish and cooking on high heat for a set amount of time. Most recipes provide instructions for how to melt certain types of cheese.
Follow recipe instructions closely when melting cheese. If the cheese cooks too long, it becomes rubbery. Overcooking cheese is avoided by closely monitoring the time it cooks in the microwave. A good tip is to cook the cheese in intervals of 15 to 30 seconds. This way, the timer can be adjusted if necessary.
Cheese dishes such as nachos normally take about one to two minutes to cook in the microwave.