Bring a large pot of water to a rolling boil.
While the water heats, write each person's name on their bag using a marker.
Crack 2 eggs into each labeled bag. Add desired mix-ins.
Seal the bag most of the way, then use your hands to squish and mix everything together thoroughly. Press out as much air as possible, seal completely, and push the mixture to the bottom of the bag.
Once the water is boiling, place the sealed bags in the water. Make sure they are fully submerged. Cook for exactly 13 minutes.
Using tongs, carefully remove the bags from the hot water. Open the top of the bag and jiggle the omelet out onto a serving plate - it will slide right out.
Add any desired toppings and serve immediately.