A salad ingredient, perhaps, could be a CUCUMBER (8 letters), radish (6 letters), TUNA (4 letters), melonball (9 letters), or coslettuce (10 letters). Cucumbers are a popular vegetable that can be eaten raw or cooked. Radishes are a root vegetable that are usually eaten raw and have a spicy flavor. TUNA is a type of fish that is often used in salads. Melonballs are small pieces of melon, such as cantaloupe, honeydew, or watermelon, that are often added to salads for a sweet flavor. Coslettuce is a type of lettuce that is crisp and has a mild flavor. All of these ingredients can be used to make a delicious and nutritious salad.