For friendly, simpler and strict ED
Fill suitable bread option (spread with butter or DF free option e.g. Nuttelex) with
Shredded iceberg letuce
Shredded chicken (leftover roast or poach)
season with salt and sprinkle with chives or parsley.
Optional add some homemade mayo (based on RPAH allergy friendly food recipe)
Or dairy tolerated ranch style dressing.
For Friendly and Simpler
You can add suitable salad ingredients.