Chicken Tortilla Soup - Traeger Grills

Ingredients

• 1 (3 1/2 to 4 lb) chicken, spatchcocked (backbone removed)
• 1/3 Cup Traeger Spicy Fajita Rub
• 2 Tablespoon avocado or canola oil, divided
• 2 ears corn, husks and silks removed
• 1 red onion, sliced ½-inch thick rounds
• 1 Teaspoon kosher salt
• 1 Teaspoon Freshly ground black pepper
• 4 Clove garlic, minced
• 2 Tablespoon tomato paste (double concentrated)
• 8 Cup chicken broth
• 1 15-oz can black beans, rinsed well and drained
• Crispy tortilla strips
• 1 avocado, diced
• 1 plum tomato, diced
• 1/2 Bunch cilantro
• Lime wedges
• Cotija cheese, crumbled (optional)