Its fine but have you stay time limited and dont whatever you do stay overnight and do it with him,personaly i think its too soon and its like giving it to him on a plate,pardon the pun.
excellent opportunity to find out what his cooking skills are - and what was the meal like!
Depends on if he's a good cook.
If you can make something delicious, that sounds like a great idea!
How well do you know him?