It is fine to thaw foods in the microwave if you use the right method.
There are three safe ways to thaw food. In order of preference they are: in the refrigerator, in cold water, or in the microwave. Use the microwave only if you are going to cook the food thoroughly immediately after microwaving it. That’s because when you microwave, some of the areas may get to the warm temperature at which bacteria flourish while others are still cold. By cooking food right after it is microwaved, it is not left at that dangerous temperature long enough for the bacteria to grow.
For some easy recipe ideas, see Meals from the Microwave.