Usually no. Mustard Greens and Strawberry are listed as an incompatible companion pair. Virginia Cooperative Extension lists strawberry as incompatible with the cabbage-family crop mustard greens.
If your garden is small, this does not mean the crops can never appear in the same yard. It means they should not be treated as a helpful pair: give them separate rows or bed sections, keep good airflow, and rotate families between seasons.
Source basis: Virginia Cooperative Extension companion planting chart. The cautious verdict is limited to the cited incompatibility rather than a claim that the pair will always fail.
Spacing tip: Give this pair separate bed zones when practical, and avoid following one with the other in the same spot without rotation.