I like the bacon ranch salad (no chicken added), I only use a little bit of the dressing packet. With a milk to drink, it's a great meal.
I also like the Yogurt/Fruit parfaits. I have them leave the granola off if they can.
The other thing I like to do is just get a Happy Meal. You get a toy & they'll let you get milk to drink. My mom collects the toys & when she gets enough, sends them to my cousins in Mexico (ages 6-15), b/c the toys are different there.
I like ordering a Value Meal @ Wendy's, they let you get a side salad instead of the fries. So I get a grilled chicken, side salad & either iced tea or milk to drink.