This game has solid mechanics that could be presented in a better way. At first, I couldn't figure out how to add lettuce since I thought "remove lettuce" meant like thrashing it completely. After that I had a fun time doing like a mini speed run of the fastest burgers.
A lot of these cooking games have multitasking as a core element of their game play so if you're going to patch this game, I recommend making the patties cook slower and making a queue for orders. That way, the player is rewarded for precooking patties with a faster order time.
Still, I enjoyed the randomized messages upon delivering an order and hope to see this game evolve more in the future!