Chipotle Sweet Potato Burgers

Bahan-bahan (4 porsi)

• 1 lb . sweet potato ($1.00)
• 1/2 cup corn kernels (frozen, $0.31)
• 1 15 oz . can black beans ($1.19)
• 1 whole lada chipotle (dalam saus adobo, $0,33)
• 1/2 cup cornmeal (divided, $0.12)
• 1/4 tsp garlic powder ($0.02)
• 1/2 tsp ground cumin ($0.03)
• 1/2 tsp salt ($0.03)
• 1/4 bunch fresh cilantro (optional $0.19)
• 1 Tbsp minyak goreng (untuk menggoreng $0,02)
• 4 wheat rolls ($1.42)
• 1 avocado ($1.19)
• 1/4 cup mayonnaise ( optional $0.45)