Fresco is the only option if eating at Taco Bell. I work at Carls Jr. and ony my lunch brake(<-- really? too much time on bfssfg), I make a low carb (replace bun with lettuce) bbq chicken and jalepeno sandwich lol.

But even then, it's not hard to eat healthier (not healthiest). Just make sure you don't intake too many calories, and eat food that have a lot of protein, eat a little less carbs, and way less fat. There are so many good ass alternatives compared to KFC double downs, pizza, cereal, in and out burger, lasagna, and mac n cheese. (<-- I used to live off of mnc)

Things that I eat a lot of:

low fat milk, eggs, salmon and tuna, rice, vegetables, cottage cheese, bread, nuts & seeds, greek yogurt (sometimes), whey and casein protein shakes, fruits, etc..