We went and had a blast on our last trip to OKC!
Although we haven't gone yet, we have heard that the tunnels are very fun! There are also art instillations to see.
Bricktown is a lot of fun, with many restaurant options!
If you like Italian food, Luigi's is a great option.
If you're feeling Mexican instead, here is a good option in Newcastle
There is also an American diner option!