Most Mexican fast food fare is high in calories. However, regular tacos, though relatively high in fat, usually contain about only 200 calories each. Not too bad if you only have one or two. But if you request sour cream, you've added an extra 50 calories to each taco. Be especially careful of refried beans.
Refried beans are just as they sound fried.
Take the skin off your chicken. A crispy fried thigh and drumstick contain about 600 calories. Search the menu for baked or broiled chicken and add a garden salad. Drink water instead of a soda. Your body needs at least eight glasses of water a day and this is a great way to pump a little H2O without soaking up added calories.