This document summarizes research on optimizing the microstructure of thin strip cast austenitic 304 stainless steel. Key findings include: 1) Austenitic 304 stainless steel can be produced via thin strip casting followed by in-line hot rolling and heat treatment, resulting in equivalent or better mechanical properties and more homogeneous microstructures than conventional thick slab processing. 2) Deformation-induced alpha-prime martensite forms in strip cast 304 steel during in-line forming, similar to conventionally produced 304 steel. 3) High resolution electron backscatter diffraction (EBSD) precisely characterizes the different phases, interfaces, and crystallographic textures in the strip cast steel.