Slow cooker chicken and garden vegetable soup

Ingredients

• 1 tbsp extra virgin olive oil
• 1/2 cup onion (chopped)
• 3 large carrots (sliced)
• 2-3 ribs celery, plus greens (chopped)
• 1 large garlic clove (minced)
• 1 tsp dried thyme
• 1 large Bay leaf
• bone-in chicken breast (skin removed, fat trimmed)
• 5 cups chicken broth
• 1 small yellow summer squash (or zucchini) (peeled and chopped)
• 1/2 cup frozen peas
• 1 tbsp dill (chopped)
• season with sea salt and pepper to taste