Is the foodcourt open?

Yes

Yes the food court was open on Monday, September 14, 2020 when my brother and I visited the Columbus Zoo. The different food stands throughout the park were mostly closed. Dippin' Dots and the Bavarian Pretzel stands were open.

Yes it was yesterday

I didn't really stop for food wasn't looking but they did have the one place open for the refillable cups and had dots icecream

They have food. Not sure what the food court is but the places near the entrance were open.