Refried Black Beans

Ingredients

• 1 tablespoon olive oil
• 1/2 cup chopped onion
• 1/2 cup chopped green bell pepper
• 2 garlic cloves, minced
• 1/2 cup tomato sauce
• 2 (15-ounce) cans black beans, drained
• 1/2 cup dry red wine
• 1 to 2 tablespoons hot sauce
• 1 1/2 teaspoons ground cumin
• 1 1/2 teaspoons dried oregano
• 1/2 teaspoon salt
• 1 tablespoon white vinegar
• 6 tablespoons fat-free sour cream
• 1 tablespoon chopped fresh cilantro
• Cilantro sprigs (optional)