What's going on? What's happening? So what's cooking these days? How have you been?See also: cook
What's cooking?
Inf. What is happening?; How are you? Bob: Hi, Fred! What's cooking? Fred: How are you doing, Bob? Bob: Hi, Fred! What's cooking? Bill: Nothing. Anything happening with you?
what’s ˈcooking?
(informal) what is being done or planned: What’s cooking in here? You all look very guilty!