"What do you like for breakfast?" would be correct.
For breakfast I like milk and pancakes.
"Did you have your breakfast" is the better one to use.
"Waiting for our breakfast to be served" is correct.
The correct spelling of the plural noun is "dinners," and "breakfast" is correct.
One can find recipes for breakfast in a number of places. Recipe websites have a breakfast website with high rated recipes their users like. One could also ask their friends and family what they like to eat for breakfast.
Yes, this is the correct way of telling someone to "cook breakfast."
"Have had" is correct. For example: The children have had their breakfast.
He doesn't like me...is correct
It is NOT correct; it should be: He has neither had his breakfast nor IS HE coming out of his room (the inversion is used here for emphasis and effect).
The correct spelling is breakfast (morning meal).
Your sister usually has breakfast at half past eight.
My sister usually has breakfast at half past eight.