Olive oil dressing

Photo: Will Heap/Dorling Kindersley/Getty Images

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Mistake #3: Putting the Same 3 Ingredients on Everything
A go-to dressing can be helpful on busy weeknights, but Zapata says there's a problem with the one-size-fits-all approach: Many minimalist dressings don't have enough body for sturdy greens, while heavier dressings can weigh down light lettuces. The fix: Take a one-size-fits-most tack instead. If, for instance, you're a fan of Dijon vinaigrette, go ahead and use it on softer leaves, such as mache or baby greens. But for heartier fare like kale, escarole, or even romaine, bolster the dressing with pureed anchovies, or swap in mayonnaise for the olive oil.