If you eat out, you can either go to a pub or a restaurant. The guys at the top of their game, qualified chefs, work in restaurants so you tend to get better and the best food. These tend to be in Interior Designed out buildings.
A standard pub employ cooks, someone who is generally good at cooking meals, so you get cheaper and traditional meals. You can all too often get crap meals there. So with a pub, you have balance the overall meal to the price. sometimes you feel the food was average, but the cheap price means you would probably return. Once the price creeps up and the meal remains standard, you tend to try other places instead.
But the thing is with American food, the chemicals in the ingredients. Hence why so much of it is banned outside of it's borders. The ingredients at home are fresher and healthier in the UK, and if you can cook, the meals are spot on.
I've eaten in Florida, Georgia, and North Carolina. Like I've said, didn't fine anything special.