Roasted Sweet Potato and Poblano Nachos With Guacamole Recipe

Ingredients (13)

• 2 pounds sweet potatoes, peeled, cut into 1-inch cubes
• 2 poblano chilies
• 2 serrano chilies
• 2 medium garlic cloves, unpeeled
• 2 tablespoons canola oil
• Kosher salt
• 1 (16-ounce) can refried black beans
• 1/4 cup chicken stock
• 3 avocados
• 1 tablespoon fresh juice from about 1 lime
• Handful fresh cilantro, stems removed, leaves chopped
• 1 bag of tortilla chips
• 8 ounces Oaxacan cheese, or other string cheese (Monterrey Jack will only do in a pinch)