HEAT oil in a large skillet over medium heat. Add onion, garlic, and green pepper. Cook for 5 minutes or until onion is started to soften and get translucent.
ADD carrots, chopped potatoes and beef. Cook for 10 minutes, flipping halfway through, until the outsides of the potatoes are crispy.
TOP with any desired optional toppings and serve.
FREEZE leftover hash in a sealed container for up to 3 months.