Ovid's Metamorphoses: A Reader for Students in Elementary College Latin by Christine L. Albright (University of Georgia), Routledge, 2018.
This book features thirty compelling stories, graduated in difficulty and adapted from Ovid’s epic Metamorphoses into prose. Each chapter contains: a Latin passage adapted from the epic; an accompanying vocabulary list; a short commentary to help with translation; a concise review of the specific grammar covered; a brief comment on a literary aspect of the poem, or featured myth.
Christine L. Albright is the 2020 recipient of the CAMWS Bolchazy Pedagogy Book Award, and has kindly provided these two stories for free download: Lycaon (link) and Arachne and Minerva (link).
Latin Via Ovid: A First Course, by Norma Goldman and Jacob E. Nyenhuis, Wayne State University Press, 1982.
Using an introduction to mythology by the master storyteller Ovid himself, the authors have prepared a unique teaching tool designed to achieve proficiency at Latin in one year at the college level, two years at the high school or intermediate level. The volume provides students with imaginative, connected reading, beginning with introductory prose versions of Ovid's simple myth tales and progressing to the rich poetry of Ovidian Latin (with appropriate teaching aids) within forty lessons. Wayne State University Press has kindly provided us pdfs of the Table of Contents (link) and Chapter One (link).