Hi Mary! Just to clarify, are you trying to plan a route in ArcGIS Pro or ArcGIS Online? I ask because the tutorial is for ArcGIS Online and the workflow is going to be a bit different if you are using Pro.
Below is a link to an ArcGIS Pro tutorial for creating routes. In ArcGIS Pro, Network Analysis tools can be found at Analysis > Tools > Network Analysis:
Tutorial: Create routes—ArcGIS Pro | ArcGIS Desktop
After reviewing the tutorial above, which method of network analysis seems best suited for addressing your meal delivery problem- ArcGIS Online or ArcGIS Pro?