Cut steak into serving sized pieces. Mix flour, salt, and pepper in a medium bowl. Heat oil in a large, lidded skillet. Meanwhile, dredge the pieces of steak in the flour mixture and fry in hot oil until browned on each side. Remove the steaks from skillet to a plate lined with paper towels to absorb the grease. Wipe excess oil from the skillet. Boil the sliced potatoes in a sauce pan with enough water to cover until crispy-tender. Drain the water from the potatoes and set them aside.

Return the steak to the skillet and top with onion, stewed tomatoes, and garlic powder. Cover and cook on low, stirring ocassionally, for 30 minutes, or until the onions are tender. Add the potatoes, cover, and continue cooking until the potatoes are tender. Add a little water if it gets too thick. Add salt and pepper to taste. Serve on a slice of bread or rice.