chicken and garden pepper soup

Ingredients

• 1 - chicken breast, boneless and skinless, chopped into small pieces
• 1 tablespoon olive oil
• 1 - small onion, chopped
• 2 stalks celery, finely chopped
• 1/2 cup chopped sweet peppers (bell, cubanelle, banana)
• 3 - serrano peppers, sliced, with seeds
• 3 cloves minced garlic
• 1 quart chicken broth (or made from bouillon)
• 1/2 teaspoon coarse black pepper
• 1/2 teaspoon salt, optional
• 1 tablespoon chopped fresh cilantro
• 3/4 cup small pasta (ditalini, sea shells, etc.)