Beef with ribs

1 carrot , peeled, cut into 1-inch cubes 2 stalks celery , cut into 1-inch thick pieces 2 potatoes , peeled, cut into 2-inch chunks 2 tablespoons flour 1[...]

1 lb sirloin, cut into 3/4 inch cubes 3 tablespoons flour 1/2 teaspoon salt 1/4 teaspoon black pepper 1 teaspoon dried oregano 1 tablespoon olive oil 1 (1 lb)[...]