We present a procedural block-based approach for USD pipelines that minimizes up-front USD knowledge requirements while ensuring users can still leverage the power of native USD. Building on USD and Conduit, we define fundamental workflow principles and philosophies on artist-interaction that guide our modular Houdini- based toolsets. Finally, we discuss the successes and challenges in scaling these workflows into production. Please check out our talk at SIGGRAPH 2021! More information will be posted after the talk.