Re:
I'm not sure why there's so much hatred for the Cathy family.
I am a very non-religious person, but find nothing offensive in how they operate. As a customer, I see nothing explicitly Christian about their business. I have yet to receive a Bible or other explicit Christian literature with my son's kiddie meal at CFA. (The fact that just about all the prizes are educational is a plus in my book.) The employees don't invite me to come to Jesus. There are no posters advertising local churches.
In contrast, I've been in Middle Eastern stores and restaurants with posters for the local mosque, and Indian restaurants plugging upcoming Hindu festivals. I've been asked if I'm a M.O.T. at a local Jewish deli. These places are much more upfront about their owners' religious beliefs. So what? That's never stopped me from enjoying my meals there. You like the food, eat it. You don't, don't.
I respect the Cathys for following their beliefs and keeping their restaurants closed on Sundays, in spite of many millions of lost revenue each year. One of the reasons they can attract higher-quality employees and (especially) managers is because they can guarantee them not just one day off, but the same one each week. That's a rarity in the restaurant biz.
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Bringing it back on topic - My personal favorite item is the Southwest Chicken Salad. Good stuff and very low-calorie.