Slow Cooker White Bean Basil Chicken Soup

Ingredients (14)

• 1 small onion
• 2 stalks celery
• 4 tsp. garlic
• 1 15 oz can diced tomatoes
• 1 15 oz can white beans (drained)
• 3 chicken breasts
• 2 Tbsp. dried basil
• 1 tsp. salt
• 1 ⁄2 tsp. white pepper
• 1 ⁄4 tsp. crushed red pepper flakes
• 2 cups chicken stock
• 1/2 cup sundried tomatoes
• 1 cup Parmesan cheese
• 1/4 cup chopped red onion