Bake the biscuits according to package directions: set aside.
Place butter and onion in a lightly greased 9-inch square pan.
Bake in a 475 degrees for 7 to 8 minutes.
Whisk together eggs and next 3 ingredients. Pour into hot onion mixture; sprinkle with cheese and crumbled bacon. Bake for 12 minutes or until set. Let stand 10 minutes. Cut into 6 squares. Fold and serve on split biscuits.
Note: Recipe may be doubled and baked in a 15x10 inch jellyroll pan. The biscuits may be made ahead and frozen. To reheat, wrap individual frozen omelet biscuits in a paper towel, and microwave at Medium (50% power)
2 1/2 to 3 1/2 minutes. Or wrap in aluminum foil, and bake at 350 degrees for 20 minutes.