Bake sweet potatoes at 400°F for 45-60 minutes.
Brown the ground meat, about 8-20 minutes over medium-high heat, and season with taco seasoning.
Add one tablespoon of oil to another large skillet over medium heat. Add chickpeas and seasonings, then sauté until crispy, about 10-12 minutes.
Mix yogurt, sriracha, cumin, and a splash of water until smooth.
Slice open each sweet potato, fill with taco meat and crispy chickpeas, then drizzle with sauce.