Mo. Rev. Stat. § 429.360: Suits for foreclosure, process, procedure — same as other civil suits.

The process, practice and procedure, including applications for trial de novo, in suits to enforce mechanics' liens which are heard by an associate circuit judge without special assignment shall be as nearly as practicable the same as provided in other civil suits heard by associate circuit judges. When a case is specially assigned to an associate circuit judge to hear upon a record, the process, practice and procedure, including appeals, shall be the same as if the case was being heard by a circuit judge.