Slice the apple really thinly and shred the cheese. Set aside.
Roll the collard greens leaves and chop them really fine. Cook them in the microwave for about 1 minute, until sligthly wilted.
Meanwhile, coat a medium (10”) non-stick pan with cooking spray and heat over medium heat
Add the egg whites, salt and pepper into a small mixing bowl and give this a quick whisk with a fork (or mini whisk, if you have one) until slightly frothy
Poor that mixture onto the preheated pan and swirl it around a little bit to spread your omelette evenly over the entire surface of the pan. Cover loosely (a pizza pan works wonders for this) and cook for 2-3 minutes, until the omelette is somewhat set.
Spread the collard greens evenly across your omelette and place the apple slices right on top.
Sprinkle cheese and pecan halves, then place under the broiler until the cheese begins to bubble and turns nice and golden brown.
Delicately slide omelette onto serving plate and serve immediately.
Drizzle a little bit of honey, if desired (I highly recommend!)