take a big mixing bowl and break all the eggs. Now add milk, onion, tomato, bell peppers, green chilies, green onion, cilantro & salt (pic 1-8).Save some cilantro for garnishing. Whisk them nicely until everything combines well.
Pour the egg mixture into the greased sheet pan (pic10). Bake it for 20 minutes at 380F (190C)
Sheet pan eggs are ready to serve as is or to make sandwiches.