Anime 53446 Tondemo Skill De Isekai Hourou Meshi Userrecs

Similar based on the theme "cooking", although not the same genre as isekai. Still can enjoy casual viewing. 

Both shows are isekai with a fantasy setting that also prominently feature cooking and food preparation as a main story element. 

Both MC are transported into another world with some cheat power/skill, which comes in handle during the plot of the anime. During the runtime of the anime they encounter other beings (ie slimes, monster, and etc) amd end become allies with them. Both anime really doesn't hide the fact that MC is so out touch in the new fantasy world in a good way. Impressing there new found allies with new dishes.  

similar plot. Both Main character gets reincarnated/isenkai with the knowledge of modern product in a magic filled world. basically use knowledge to create common modern item etc that doesn't exist in the new world. 

Both main character comes to new world an introduces the world to new earth items. Both have a focus on food. But Retirement is more than just food and does a lot of talk about nobles. Campfire is focused more on creating delicious food. 

To summarize, both anime have MCs that get stuck with pretty strange jobs/skills for an isekai world and make the best out of them. 

Very similar ideas in a similar setting! 

Main characters who get reincarnated in another world and bring their cooking expertise - and ingredients - with them where possible! Meng Qi Shi Shen is more about romance and an independent woman, whereas Campfire cooking has 3 main characters travelling together.