I made this tortilla soup for dinner with my friends this winter and it was perfect for the cold weather, you probably don' t need the two chilles though.. I doubled the recipe because we were 8 andbit was ok woth one chili because not everyone puts it in the soup. Also I only had 5 tomatoes and I jus poured a bit of tomato puree instead which was good. For the onions I only used one but because mine was REALLY big!
Tex-Mex Chicken Tortilla Soup - Here's the chicken soup cowgirls turn to when they get the blues!