Rosemary Chicken Stew

Ingredients

• 2 pounds boneless skinless chicken breasts, cut into bite-size pieces
• 1 (10 ounce) package fresh mushrooms, sliced
• 3 medium onions, sliced
• 1 (16 ounce) can diced tomatoes with juice
• 1 pound carrots, sliced
• 4 celery ribs, sliced
• 1 pound dried great Northern beans, soaked overnight
• 6 cloves garlic, chopped
• 1 1/2 teaspoons dried rosemary
• water
• salt and pepper to taste
• cornstarch