Only One 2 ~Meshimase Megumi no Sweet Apron~

Main character finishes chef training in Europe and returns back to his home town. His parents die in a traffic accident leaving him a western-style restaurant "Hidden Rabbit". He's good at cooking, but he totally fails as a manager, so he calls a female childhood friend to take this position. Alas, she's no good as a waitress. They find a cheerful waitress to chase their dreams together.

[From vndbreview]