Onion rings are another delicious fast food. I love the soft oniony inside and the crunchy batter outside. Unfortunately, the deep frying part renders these puppies into a very fatty snack.
I was hoping that onion rings would have less calories than french fries, but they don't. I have noticed that they taste strongly, and that I can't eat as many onion rings in a sitting as french fries.
If you can find a "value" size of onion rings, that will set you back around 180 calories, which is a more manageable amount.
What CAN you eat at a fast food place? This is a really hard question because most of the food served is very processed. Processed food means that the fast food chain has altered its form such that the nutritious part is taken out.
I don't think there is any food that is MORE nutritious after processing. A "whole food", for example an apple, has all its nutrients intact and is much better for you than a processed food.