The amounts depend on how large of a salad you are putting together, so for the most part you just have to guesstimate based on the amount of Spinach you have.
If I am making a large bowl for a get together I would put these approx amounts: 1 large bag of Spinach, 1 cup shredded carrots, ¼ cup shredded Colby Jack, 1 large cucumber, ¾ cup Craisins, 1 can of Mandarin Oranges, ¾ cup sliced almonds, 2 tomatoes and 2 avocados.