Something Borrowed, Someone Blue (2) - S7-E24
Continuity mistake: The brother Daphne identifies as Nigel is later Steven. Seeing as Steven is her favorite brother she wouldn't have mixed them up.
Something Borrowed, Someone Blue (2) - S7-E24
Other mistake: When Daphne comes to the Winnebago she doesn't close the door properly, you can see it opening slightly again. When she and Niles drive off, it's closed.
Answer: In the last episode, they explained that Tossed Salad and Scrambled Eggs is a metaphor for the mixed-up people to whom Frasier dispenses his radio psychiatric advice.