Preheat oven to 300ºF.
In a large roaster, add potatoes. Top with short ribs. Sprinkle onion, shallots, and garlic on top of potatoes and ribs. Add salt, steak seasoning, and paprika. Add orange juice and oil, tossing so the meat and all potatoes are well-coated.
To prevent sticking, right before baking, add some water to just cover the bottom of the pan.
Cover and cook for 2 ½ hours.
For any meat that cooks for a long time, always check after 2 hours. If needed, cook an additional hour. Every oven is different.