Heat oven to 350°F. Heat tortillas as directed on package.
Meanwhile, in medium bowl, beat eggs and salt. Melt margarine in medium skillet over medium heat. Add egg mixture; cook until eggs are almost set, stirring occasionally. Remove skillet from heat.
Place warm tortillas on large ungreased cookie sheet. Top each tortilla with eggs, onions, tomato, green chiles and cheese.
Bake at 350°F. for 5 to 10 minutes or until very warm and cheese is melted. Top each with salsa and sour cream.