Classic Minestrone

Ingredients

• 3 tablespoons olive oil
• 1 leek, sliced
• 2 carrots, chopped
• 1 zucchini, thinly sliced
• 4 ounces green beans, cut into 1 inch pieces
• 2 stalks celery, thinly sliced
• 1 1/2 quarts vegetable stock
• 1 pound chopped tomatoes
• 1 tablespoon chopped fresh thyme
• 1 (15 ounce) can cannellini beans, with liquid
• 1/4 cup elbow macaroni
• salt and ground black pepper to taste