simple yes - healthy NO
ALL deli meats have nitrates in them which are directly linked to causing stomach cancer. I know a guy that had 1/2 his stomach removed due to cancer and the first thing his doctor asked him was "do you eat deli meats?" if so stop.
they are also high in fat and salt and preservatives.
if you want meat on your salad - use a real turkey or chicken breast, not that processed crap.
Cheese - I recommend against any dairy foods - same reasons. High fat, high salt, high preservatives, highly processed, LOW nutritional value.
croutons - NOT good. Most are white bread which turns to sugar in the body almost immediately and acts like glue in the intestines. What that causes is your intestines to not function properly so any GOOD nutrition that you do eat, cannot be absorbed by the intestines and taken to the cells of your body. It just gets all bunged up in there and goes right out the other end.
dressing - I suggest NONE off the shelf. They almost ALL have MSG
which causes all sorts of problems.
Make your own dressing from fresh squeezed lime or lemon juice, a dash of Braggs
and a little virgin olive oil or sesame oil if you must. That's all you need.