Can Restaurants Even Be Profitable?

I read somewhere that a lot of problems come from the chef station not having everything programmed in it and you need additional things to fulfill all the menu items. But ive tweaked the menu and some stuff still isnt coming and theres no way for me to tell what stuff needs what item and what the chef station has. So complicated lmao
i know icecream desserts need the icecream maker, popcorn appetizer needs the popcorn machine, microwave dinner needs the microwave, coffee/espresso drinks need the appropriate machines aaaand bar drinks need a bar and thats all i know