The 32-year-old country star has engaged herself in some casual dating, reported E! Online.
"Miranda is doing wonderful! She is staying busy and really happy. She is dating and enjoying single life. She is taking things slow and just going with the flow," the source added. It's all about her now though. Her friends think she is in a great mind space," source said.
Shelton, 39, filed for divorce from Lambert in July after more than four years of marriage.
He is currently dating his "The Voice" co-star Gwen Stefani, 46, are dating.