Makes a lot. https://www.ahealthysliceoflife.com/slow-cooker-baked-ziti/
Brown the ground beef in slow cooker.. Add the garlic and cook together for 3-4 minutes until meat is cooked through.
Add one jar of sauce, water, Italian seasoning, garlic powder, and pasta. Mix well.
Add the ricotta and a half cup of the shredded mozzarella, mix until combined. Top with the remaining jar of marinara and sprinkle the remaining half cup of shredded mozzarella over the top.
Set on low for 3.5 hours.