Lyon entered the final without four starters: French stars Griedge Mbock and Amandine Henry, who were injured, England forward Nikita Parris, who was suspended after being red carded in the semifinal win over Paris St. Germain, and 2018 Ballon d'Or winner Ada Hegerberg, who has been out since January with a knee injury.
Parris' suspension allowed veteran Eugenie Le Sommer to return to the starting lineup at center forward, and the Breton scored the first goal and was involved in the other two goals scored by Japan's Saki Kumagai and Iceland's Sara Gunnarsdottir.
Sunday's title was the seventh for Le Sommer as well as two other Lyon players, goalkeeper Sarah Bouhaddi and defender Wendie Renard. Amel Majri has been on Lyon since its first title in 2011 but didn't play in all the championship games.
Staying on top will not be easy. Manchester City (Sam Mewis and Rose Lavelle) and Chelsea (Wolfsburg star Pernille Harder) have boosted their squads for the 2020-21 FA Women's Super League season that starts on Saturday.
Besides Gunnarsdottir, who was signed from Wolfsburg, Lyon has signed young Australian defender Ellie Carpenter from the Portland Thorns and Jodie Taylor from OL Reign for the 2020-21 season. German star Dzsenifer Marozsan and Bouhaddi were signed to new contracts instead of moving to the NWSL.
But Lyon's depth is what is most impressive. The best player in the final was 23-year-old winger Delphine Cascarino, who has never been a full-time starter in her six seasons at Lyon.