You don't say where you are staying or whether you plan to use a park day on your arrival day. If you go th Garden Grill, you will need to have Epcot admission--it might not be worth entering the park if you only have a few hours.
We generally go to Chef Mickey's on the first night if we arrive about dinner time. That way, we get the Disney character experience without the hassle of a park. And sometimes a few extra chocolate chip cookies find their way back to our room........but I shouldn't admit that.