Place empty silicone egg mold on a parchment paper lined baking sheet*Do NOT skip this step! The egg molds are flimsy and will spill if you pick them up after you fill them. I like to add a layer of parchment paper for easy cleanup just in case some spills. Learn from my mistakes... :)
Spray silicone egg mold with a light coat of cooking spray*I've found this very important when cooking plain egg whites in the molds
Pour the entire carton of egg whites evenly into egg molds...each well will be ~1/2 full
Sprinkle with salt and pepper to taste
Gently place the pan in the oven and bake for 12-15+ minutes or until eggs are set and no longer jiggle when you nudge the pan
Allow to cool completely before removing from the molds
Store in an airtight container in the fridge until you are ready to assemble your sandwich/sandwiches
Notes
Nutrition facts will vary depending on exact items and amounts used.