To reheat ramen in the microwave, transfer the noodles and sauce to separate microwave-safe bowls. Cover sauce bowl with a microwave-safe lid or plastic wrap to prevent splatters and heat on high for 1-2 minutes, or until heated through, then stir and set aside. Next, heat the noodles in the microwave for 1-2 minutes, or until heated, then pour the sauce over the noodles and stir before serving.