Preheat your oven to 300°F (150°C) and line a baking sheet with parchment paper.
Pat the pork ribs dry with a paper towel and rub both sides with avocado oil.
In a small bowl, combine the smoked paprika, garlic powder, onion powder, sea salt, and black pepper.
Apply the spice rub evenly over the ribs, pressing it into the meat.
Wrap the ribs tightly in aluminum foil and place them on the prepared baking sheet.
Bake for 2 hours until the meat is tender and begins to pull away from the bone.
While the ribs bake, whisk together the tomato paste, apple cider vinegar, and maple syrup in a small bowl to create the glaze.
Remove the ribs from the oven, carefully open the foil, and brush the glaze generously over the top of the meat.
Set the oven to broil and place the ribs back inside for 3-5 minutes until the glaze is bubbling and slightly caramelized.
Steam the green beans for 5-7 minutes until they are bright green and tender-crisp.
Serve the glazed ribs immediately alongside the steamed green beans.