Escudero made the fight announcement during a chat Tuesday on his official website.
The date and location for UFC 103 has not been made official, but will take place in September, possibly on Saturday, Sept. 26.
Escudero defeated Philippe Nover last December to win the Spike TV-UFC reality show competition. He was then scheduled to fight at UFC Fight Night 18 in Nashville, but withdrew due to a rib injury.
Miller is coming off a win against season eight cast member Junie Browning earlier this month at UFC Fight Night 18.