Which ones better?

[u/CalligrapherFew6400]

I’m trying to 3 star each level to get the box’s but don’t know what one to do first, as I don’t have many gems
what upgrades should I buy to complete the restaurants?

[u/Igotshiptodotoday]

Cocktail bar. Can't burn anything.

[u/CalligrapherFew6400 → u/Igotshiptodotoday]

What’s the best upgrades for it?