Heading to McDonald's for a healthy lunch might sound foolish.

But it's not impossible.

We checked out the lunch and breakfast fare at dozens of on-the-go restaurants — from Chick-fil-A to Wendy's — to find some of the healthiest items they offer.

The foods we picked all pack less than 500 calories, are fairly low in saturated fat and cholesterol, and include 15 or more grams of protein to keep you feeling full. Our main caveat with most of these items, however, is that they pack a lot of salt, so you'd probably want to watch your sodium intake on the days you consume them.

Here are the sandwiches, salads, bowls, and burgers to order when you're seeking a lighter option.