Prep your oven and pan: Heat oven to 425°F (220°C). Line a rimmed baking sheet with parchment and lightly oil it. This helps the meatballs brown and release cleanly.
Make the sauce: In a small bowl, whisk mayonnaise, hot sauce, vinegar, sweetener, red pepper flakes, and smoked paprika.
Taste and adjust heat or sweetness. Set aside.
Mix the meatballs: In a large bowl, combine ground meat, almond flour, egg, mayonnaise, green onion, garlic, ginger, soy sauce, salt, and pepper. Stir gently until just combined.
Do not overmix.
Shape: With damp hands or a small scoop, form 18–20 meatballs, about 1 to 1.25 inches wide. Arrange them evenly on the lined sheet.
Bake: Cook for 12–15 minutes, until the centers reach 165°F (74°C) and the edges start to brown. If you like a deeper crust, broil for 1–2 minutes at the end.
Sauce and toss: Transfer hot meatballs to a large bowl.
Spoon over most of the firecracker sauce and toss gently to coat. Reserve a little for drizzling.
Serve: Plate over warm cauliflower rice or crunchy slaw. Drizzle with remaining sauce and top with sliced green onions, sesame seeds, and a squeeze of lime.