Line a large dish with paper towels.
Heat a large sauté pan on high heat, add oil to the pan
Add sweetpotatoes and cooked until caramelized.
Remove the pan from heat.
Use a slotted spoon to remove the sweetpotatoes from the pan to the paper towel-lined dish.
Set the potatoes aside.
Return pan to stove. Set heat to medium-high heat.
Add chorizo and cook for 3-4 minutes.
Add, peppers, onions, shallots, garlic, and cook until the poblanos are “al dente” approximately 4-5 minutes.
Remove the pan from heat.
Place chorizo mixture in a large bowl along with sweetpotatoes, cilantro and green onions. Season with salt and pepper to taste.
Cool mixture. Filling may be prepared the day before and refrigerated in a covered container.