Shocking, right? Aside from rice cakes, leafy green salads are usually the first thing that come to mind when the word "diet" is mentioned -- for good reason! Leafy greens are high in fiber and remarkably low in calories, as long as you don't drench them with full-fat ranch dressing and other unhealthy toppings. The darker green varieties in particular are packed with good carbohydrates, vitamins, antioxidants and minerals.
Consider starting off meals with a salad to avoid overindulging on the main course. And don't relegate leafy greens to salads only. There are tons of other ways to incorporate greens into your diet. Spinach is an excellent side dish for virtually any meal, and you can swap out conventional bread or tortillas for large leaves of dark lettuce when eating sandwiches or burritos.