Autumn Minestrone Soup

Ingredients

• 2 medium onions, chopped
• 2 tsp salt
• 1/4 cup olive oil
• 2 cloves garlic, pressed or minced
• 4 stalks celery, diced
• 4 medium carrots, peeled and diced
• 5 cups peeled and cubed potatoes
• 1 1/2 tsp dried oregano
• 1/2 tsp freshly ground black pepper
• 1 1/2 bags baby spinach
• 9 cups rich chicken broth
• 1 medium butternut squash, seeded and cut bite sized
• 2 15-19 oz cans canellini (white) beans, rinsed and drained