Melt butter in a large Dutch oven over medium-high heat. Add onions and peppers, and saute 6 to 7 minutes or until tender. Add garlic, and saute 1 mintue.Stir in diced tomatoes,and cream soups.Combine thoroughly. Stir in broth and next 4 ingredients.
Increase heat to medium-high,and bring to a boil. Reduce heat to low,and simmer, stirring occasionally, 5 mintues.Stir in tortilla strips, and simmer 2 more mintues. Add salt to taste