Cuban Black Bean and Ham Soup

Ingredients

• 2 (15-ounce) cans black beans, undrained
• 1/2 lb lean or low-fat cubed ham
• 1/2 Tbs olive oil
• 3/4 cup diced onions
• 1/2 cup diced red bell peppers
• 1 Tbs minced garlic
• 1/4 tsp ground cumin
• 1 1/2 Tbs chopped fresh cilantro
• 1/8 tsp dried thyme
• 1/2 (10-ounce) can Rotel tomatoes (or other chopped tomatoes with chilies)
• 1/2 (6-ounce) can tomato paste
• 3 (14-1/2-oz) cans fat-free chicken stock
• salt
• black pepper
• low-fat or fat-free sour cream
• cilantro for garnish