Rinse and drain the diced green-chiles then drain the diced green-onions.
Add the cream-cheese, green-chiles, black-beans, green-onion, garlic-powder,hot-sauce and salt into a bowl. Stir together till evenly blended. Then taste & adjust the salt or hot-sauce to your liking.
Stack 5 tortillas on a plate, cover with a moist paper-towel and microwave for 20seconds for soften (this can help stop them from cracking when rolled).
Heat a cast iron-skillet or large-non-stick over moderate heat. Working fast when the skillet heats, then put about 2 tbsp of the black-bean filling in each tortilla then roll tightly shut.
Add about 1 tbsp cooking-oil into the skillet, give it a couple of minutes to heat (it ought to heat), then add the filled taquitos seam side-down. Cook the taquitos on each side until crispy and brown, then move to a fresh plate.
Repeat the procedure in tiny batches of 5, including a bit more oil into the skillet every moment, until all of the filling was used (roughly 15 taquitos). Then serve and enjoy while still warm.