Couture suffered a broken jaw in her debut in June 2008 and lost via unanimous decision to Kim Rose, but bounced back last November to TKO an overmatched Lina Kvokov at Strikeforce.
Tate has won four in a row. Her only professional loss was a 30-second KO at the hands of EliteXC veteran Kaitlin Young. Tate last Saturday defeated Liz Carreiro to win the Freestyle Cage Fighting 135-pound title in Shawnee, Oklahoma.
The featured women's bout will be contested at 135 pounds.
ShoMMA, which will air live on Showtime from the Save Mart Center, is being headlined by Billy Evangelista vs. Mike Aina. Also, Lavar Johnson will fight on the card against an opponent to be announced.