We tried this last night and it was great! Easy and fun too!
Have everyone write their name on a quart-size zip-lock freezer bag with permanent marker. Crack 2 eggs (Large or Extra large) into the bag (not more than 2)shake to combine them. Put out a variety of ingredients such as ; cheeses, ham, onion,green pepper, tomato, hashbrowns, salsa, mushrooms, Etc. Each person adds prepared ingredients of choice in to their bag and shake, Make sure to get the air out of the bag and then zip it up. Place the bags into rolling boiling water for exactly 13 minutes. You can usually cook 6-8 omelets in a large pot. For more make another pot of boiling water. Open the bags and the omelet will roll out easily. Be prepared for everyone to be amazed. Nice to serve with fresh fruit or toast . Everyone gets involved in the process and what a great conversation piece.
P.S. a quote from someone else's experience: "I tried it this weekend and mixed mine into a bowl before putting into bag, I also added salt, pepper and a little milk and a tiny sliver of butter. Since I had added so many ingredients, ours took 15 minutes to get done, and I was amazed as to how large and fluffy they turned out. It will be a staple in our house now for making omelets. A friend used sandwich bags which melted, so use quart freezer bags."