It's a great concept, I love the art and the way all the foods have faces on them is very charming!!
It does definitely need some work, the controls are very fiddly. One change that would make a HUGE difference is being able to put things down/back. E.g. click the egg carton to pick up an egg, and then click the egg carton again to put back the egg. The same goes for picking food up off the mat, you should be able to put it back down again, as the way it is currently you can either serve it (if it's ready) or throw it away only, which is bad because your food might be almost ready but you picked it up by accident and now you have to start again >.< I think changing this would make a BIG difference in the game :D
Another thing I would suggest is a slower start to the game. You are thrown in with no instructions, and a tutorial would be useful but it would also take extra work to add. So I suggest instead just have customers patience empty slower at the start, and have it gradually drop faster as the game goes on (so it gets harder the longer you play). I think this would help ease people into playing and give them a chance to click around and figure out what to do :D
Either way though, it's really good and again the art is very very cute <3
Edit: Just played...a LOT. It does seem there's a slower start that I hadn't realised before, my mistake! It definitely does take a hot minute to learn everything and memorise things, but once you get going it's really fun :D My highest score is 291, trying to beat it!! I will say it is still a little bit fiddly, some things could be improved such as bigger hitboxes for clicking things (e.g. if you click between the bottles it should still count as a click on the bottle, and I keep accidentally picking up eggs instead of blue ice-cream >.< I like being able to click to the right to grab eggs while the freezer is open, it's very useful! But when clicking to the left it still grabs eggs from behind the ice-cream UI which is frustrating >.<)
But yeah I really enjoyed this!!!! :DDD Awesome work