Chicken Tacos

1/4 cup green onion chopped
1 tablespoon shortening
2 cups shredded cooked chicken
1 (8 ounce) can green chile sauce
Salt to taste
Corn tortillas
1 cup Cheddar cheese, grated
1 cup chopped lettuce
1 cup chopped tomatoes
1 cup sour cream
1 cup guacamole

Saut