Butto (6-3) picked up the win Thursday, walking one batter in a scoreless inning of relief.
Butto gave up a run on four hits and a walk over three innings to record his second save of the season in Monday's win over the Twins. He struck out two.
The Mets recalled Butto from Triple-A Syracuse on Tuesday, Anthony DiComo of MLB.com reports.
Butto could make a spot start for the Mets prior to the All-Star break, Will Sammon of The Athletic reports.
The Mets optioned Butto to Triple-A Syracuse on Wednesday.
Butto (1-3) took the loss Tuesday against the Phillies, allowing two runs on one hit and four walks over five innings. He struck out four.
Butto (1-2) got the win Tuesday over the Cardinals, allowing three runs on five hits and three walks while striking out three over five innings.
Butto (0-1) took the loss Friday as the Mets fell 4-2 to the Cardinals, giving up four runs on four hits and three walks over 5.2 innings. He struck out four.
Butto was recalled from Triple-A Syracuse to start Sunday's game against the Royals.
Butto is expected to be recalled by the Mets to start Sunday against the Royals, Mike Puma of the New York Post reports.