You can evolve a Pokmon during your Action Phase of a turn by placing its evolved form from your hand onto the corresponding Basic or Stage 1 Pokmon
Other options Besides these two cafs, there are plenty of other places to get Pokmon-themed food in Tokyo
C Common Return of the Zombies X TRAP Banish 1 Zombie monster on the field, then Special Summon 1 Zombie monster from the GY of the player who controlled it, to their field, in Defense Position

Ancient Silver Dragon April, Reporter of the Weird Arm-Mounted Anchor Azra Oddsmaker Battle Angels of Tyr Bebop, Skull & Crossbones Book Devourer Captain Howler, Sea Scourge Cold-Eyed Selkie Curie, Emergent Intelligence Damocles Base, Sword of Kang Diviner Spirit Fear of Failed Tests Foot Chopper Glenn, the Voice of Calm Glint-Eye Nephilim Hunter's Insight Hunter's Prowess Impaler Shrike Iymrith, Desert Doom Jolrael, Voice of Zhalfir Kain, Traitorous Dragoon Korvold, Gleeful Glutton Mask of Memory Mask of the Schemer Merfolk Windrobber Mighty Servant of Leuk-o Nael, Avizoa Aeronaut Neheb, Dreadhorde Champion Nimble Brigand Ogre-Head Helm Peema Trailblazer Professor Hulk Psychic Frog Robe of the Archmagi Sauron, the Dark Lord Sergeant John Benton Shadow, Mysterious Assassin Shoreline Looter Starwinder Sturmgeist Subterfuge Summon: Primal Odin Surrakar Spellblade The Gitrog, Ravenous Ride The Pride of Hull Clade Trash the Town Xyris, the Writhing Storm Zombie Cheese Magician