In a medium bowl, whisk together mashed sweet potato, eggs and cottage cheese.
To the wet ingredients, slowly add flour, baking powder and spices. Mix well.
Mix in the green onion, pickled jalapenos and cheddar cheese (ensuring you save some cheddar cheese for topping).
Divide the batter between 12 muffin cups (about ⅓ cup of batter per muffin cup). Top with remaining cheese. Bake for 23-27 minutes, or until a toothpick inserted into the center of the muffin comes out clean.
