coat a 4 quart pan with no stick spray. Add olive oil, onions & celery. Cook over medium heat for 2 minutes. Add carrots and garlic and cook for another 3-4 minutes. Add pinto beans, broth, water and seasonings. Bring to boil and let simmer 20-25 minutes until veggies are soft. Ladle into bowls and top with sour cream and green onions.