Butter a large nonstick muffin tray.
Beat egg with 1 tsp. of water and pour into the muffin tray
Bake at 350 until egg mixture is set (6 to 8 min)
While egg is baking, toast biscuit and panfry ham
Butter biscuit halves and layer bottom half; lettuce, cheese, ham, egg, tomato.
Place top crust on sandwich