Countryside Chicken Stew

Ingredients

• 2 pounds boneless, skinless chicken thighs, cut into 1-inch pieces
• 1 tablespoon olive oil
• 1 medium yellow onion, chopped
• 2 cloves garlic, minced
• 1 1/2 pounds red potatoes, peeled and quartered
• 2 stalks celery, chopped
• 1 (14.5 ounce) can diced tomatoes, undrained
• 3 cups chicken broth
• 1 teaspoon dried thyme
• 1 bay leaf
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper
• 1 1/2 pounds russet potatoes, peeled and roughly chopped
• 1/2 cup milk or cream
• 2 tablespoons butter
• 1/2 pound fresh green beans, trimmed