You should feel great about your sensible choice, not bad about the fact that it came from a fast-food place.
We live in the real world, a world in which really long, tiring days mean you just plain don't want to come home and cook a whole healthy meal. Wendy's chili is not a sin, it's a convenience and a smart choice compared to a lot of other fast food places and menu options.
I noticed you wrote "we," so I'm gathering you went out to eat with others? And you had a chili while they ate their lunches? And you felt full and satisfied with your chili? Honey...that isn't failure, that is a major victory on multiple fronts!
Enjoying your meal doesn't make it cheating. I enjoy all of mine and I'm still moseying along.
