Low calorie fast food in major fast food chains

Eating out is always a risk of high calories especially in fast food chain. 
If you go to McDonalds you can try the Hamburger (250 calories) with the Small fries (230 calories). In Burger King you can order the Kid’s Menu Cheeseburger (280 calories) with 4 chicken nuggets (170 calories). When I go to Wendy’s I always order the 4-piece chicken nuggets (170 calories) and the Garden side salad (250 calories). And finally for Taco Bell the Chicken soft taco (170 calories) and Beef soft taco (180 calories) only add up to 350 calories.