I haven't tried the hot dogs at TCF, I have tried the bacon cheeseburger, and it was pretty good. The fries were good as well.
Stadium food ought be be a point of pride. I was at an NDSU basketball game a couple years ago, and I had a hot dog. The lines were too long, so I skipped the condiments. It was a really, really good hot dog, even eating it plain. And it cost $1.75. At Williams Arena, a hot dog cost more, and was a sad little thing on a dry bun.
There are stadiums around the country where the food available is a point of pride, they could be on an episode of "Man v. Food". It helps build up the atmosphere and culture of a college if stadium chow is something you actually look forward to rather than merely something to fill your stomach. But that would require direction from the U, the contractor only has incentive to make food as cheaply as possible and to sell it for as much as possible.
Still, there are some other options, there is Subway and Dinos. Has anyone had a gyro from Dinos at the game? I'm pretty picky about gyros. I'd love to see Pronto Pups at the game. Convenient to eat, and a Minnesota classic.