"Watch out for tricky salad toppings that add up quickly: creamy, bottled dressings; cheese; bacon; croutons; or sweetened, dried fruit," Zanini says. Other ingredients, like avocado and nuts, are healthy in small amounts but are usually served in too-large portion sizes, Kaufman says. To make sure your salad is as healthy as possible, look for one with leafy greens, lean protein (fried chicken doesn't count), a small serving of healthy fat, and an oil-based dressing on the side. The oil helps you absorb all the fat-soluble nutrients you're eating, and keeps you away from caloric creamy dressing.