Chicken Tortilla Soup

1/2 cup bell pepper, diced
1/2 cup yellow onion, diced
Butter
2 cans chicken broth
1 can corn (or 1 cup frozen)
Chicken breast, cooked
1-1/2 cups salsa
Cilantro, diced

Sauté bell peppers and onions in butter. Cook all ingredients together in a saucepan until hot. Serve with tortilla chips. Top with cheese and sour cream.