Preheat oven to 300°F.
Remove the thin membrane from the back of the ribs using a paper towel for a better grip.
In a small bowl, combine smoked paprika, garlic powder, onion powder, sea salt, and black pepper.
Rub the spice mixture evenly over both sides of the ribs.
Wrap the ribs tightly in aluminum foil and place on a baking sheet; bake for 2 hours until tender.
While ribs bake, whisk together tomato paste, apple cider vinegar, Dijon mustard, and maple syrup to create the glaze.
Remove ribs from the oven, carefully open the foil, and brush the glaze generously over the top.
Increase oven temperature to a broil and cook the ribs uncovered for 3-5 minutes until the glaze is bubbly and slightly charred.
Steam the green beans in a steamer basket for 5 minutes until vibrant and tender-crisp.
Serve the ribs alongside the steamed green beans.