Preheat the oven to 400 degrees Fahrenheit. Spray muffin pan with coconut oil spray or cooking spray.
Brown ground turkey meat until it is fully cooked. Add taco seasoning to cooked ground turkey. Then set it aside.
Add olive oil to a large skillet. Add sweet potato, onion, and mushrooms. Sprinkle with cumin. Saute for approximately 8 minutes until the potato softens and the onions turn clear.
Divide the cooked veggie mixture among the 12 muffin tins. Add a spoonful of ground turkey to each muffin tin.
In a small bowl, whisk the eggs and yogurt. Pour egg mixture over the veggies into the 12 muffin tins. Sprinkle salt and pepper.