Spinach salad is usually served chilled, and most often tossed in a vinegar, oil or mayonnaise-based dressing. It is typically served as an appetizer or a main course. The ingredients used vary widely by region, restaurant, seasonal availability, and/or preference of the preparer. Spinach Salad ingredients can include vegetables, legumes, cheeses, nuts, herbs, spices, meats, poultry, or seafood. Broccoli, carrots, baby corn, cucumbers, olives, onions, beans, chick peas, peppers, parmesan and feta cheeses are all popular ingredients in versions typically found at North American salad bars.