Chips are one of the top foods people crave when they're trying to diet. You can still have the crispy, salty taste of potato chips and still trim your waistline if you're willing to put in a very small amount of work. Slice up whole grain tortillas and bake them at 350 degrees for 12 minutes. Voila! Tortilla chips. To duplicate potato chips without the preservatives or high fat content, slice potatoes or sweet potatoes very thinly, sprinkle with salt, garlic or pepper. Add 1 teaspoon olive oil and bake at 400 degrees for 30 minutes.