Here is the full list of all 9 MopGarden's Veggie Cart achievements.
Complete the entire City world
Yeet the rat off-screen 100 times
Throw Alfred off-screen 100 times
Huck the crow off-screen 100 times
Complete the entire Forest world
Complete the entire Beach world
Complete the entire Suburbs world
Complete the entire Moon world
Make friends with the Cool Intergalactic Space Bunny