In a large bowl, mix together the cream cheese, sour cream, green chilies, ground cumin, chili powder, garlic powder, onion powder, shredded cheddar cheese, shredded pepper jack cheese, and diced chicken. Season with kosher salt and fresh ground black pepper to taste.

Spoon the mixture in a line across the top third of a tortilla. Roll the tortilla tightly and secure it with a toothpick.

Heat 1-1 1/2 inches of oil in a cast iron skillet or heavy pot like a Dutch oven.

Using tongs, carefully add a few taquitos and fry for about 3 minutes on each side or until golden brown.

Work in batches and remove to a paper towel-lined plate or platter as they are fried. Carefully remove the toothpicks.