Bono pizza is good and I would get the carbonara pizza but it is very small so you might consider getting carry out. It is pretty close to Grandview. There is also a Dewey's on 5th Ave which has good pizza and a big dining room.
Cap City is good but I've been there so many times i'm kind of tired of it.
If you're looking for an upscale meal in the Grandview area, my wife and I really liked 3rd and Hollywood. They have a great pimento cheese appetizer and all of the entrees we tried we good. It is also within walking distance of the Grandview Jeni's.
If you want BBQ, there is a great food truck in Clintonville on High St north of campus called Ray Rays. He is only there Friday-Sunday. I have not been on a Sunday but he does grass fed brisket that day only. I have had the regular brisket, ribs, and pulled pork and all were good. I did not like the mac and cheese.
For Chinese, I like the Hunan House on 161 (Dublin Granville Rd) on the Northeast side. A little closer to Grandview is Fortune on Olentangy which recently came under new ownership and is very good.
If you are feeling adventurous and want to try some of our expanding ethnic sleections, check out this blog http://alteatscolumbus.com/
There is also a good blog by on our many taco trucks here http://tacotruckscolumbus.com/
Any other type of specific food you are looking for? Let me know and I might be able to help.