Preheat your oven to 400°F and line a baking sheet with parchment paper.
Peel and cube the sweet potato into half-inch pieces, then toss with avocado oil, sea salt, and black pepper.
Spread the sweet potatoes on the baking sheet and roast for 20 to 25 minutes until they are golden and tender.
While the potatoes roast, finely mince the prawns or pulse them in a food processor until they form a coarse, sticky paste.
In a medium bowl, combine the minced prawns, egg, almond flour, sesame oil, coconut aminos, grated ginger, minced garlic, and sliced green onions.
Form the prawn mixture into small meatballs, roughly one inch in diameter.
Heat a large non-stick skillet over medium heat and lightly coat with cooking spray if needed.
Sear the meatballs for 3 to 4 minutes per side until they are opaque and slightly browned on the outside.
Serve the hot prawn meatballs over the roasted sweet potato cubes and enjoy immediately.