Easy One-Pot Lentil Kielbasa Soup

Ingredients

• 2 tablespoons extra-virgin olive oil
• 12 ounces kielbasa, sliced
• 2 celery stalks, sliced
• 2 medium carrots, chopped
• 1 small onion, chopped
• 3 garlic cloves, sliced
• 1 cup French or green lentils
• One 15-ounce can crushed tomatoes
• 6 cups chicken broth
• Kosher salt and freshly ground black pepper
• 2 heads broccoli rabe, chopped