There is a small restaurant in Bartonville, literally across the street from Lantana, called Andrew's. I've been in to eat several times and it hasn't ever been very crowded... but I don't know why!
The staff at Andrew's is extremely friendly, and the home-cooked meals are delicious! A little secret is that they are ready and willing to prepare breakfast at any time of the day, so when you want eggs & pancakes and don't feel like driving down to Highland Village to eat at IHOP, there's an option right in the neighborhood. If you're in the mood for dinner, whatever you get make sure you try the fried green beans on the side. I loved them!
I'm a huge fan of eating where you live, which makes Andrew's a great choice for breakfast, lunch and dinner in Lantana and Bartonville.