Mix the meatballs: In a large bowl, combine ground beef, ground pork, eggs, almond flour, minced onion, garlic, ginger, salt, pepper, onion powder, and parsley. Use your hands to mix until just combined.
Don’t overwork it or the meatballs can turn dense.
Form the balls: Scoop about 1 1/2 tablespoons of mixture per meatball. Roll gently into 1 to 1.25-inch balls. You should get around 28–32 meatballs.
Optional browning step: For extra flavor, sear meatballs in a hot skillet with a bit of oil for 1–2 minutes per side.
You’re not cooking through—just getting color. This step adds richness but isn’t strictly necessary.
Make the sauce: In a bowl, whisk coconut aminos, vinegar, sweetener, keto honey substitute, tomato paste, sesame oil, minced garlic, ginger, and red pepper flakes. Taste and adjust sweetness, salt, and acidity to your liking.
Load the crockpot: Place meatballs in the slow cooker in an even layer (it’s fine if they overlap slightly).
Pour the sauce over the top, making sure everything is coated.
Cook low and slow: Cover and cook on Low for 3–4 hours or on High for 1.5–2 hours, until the meatballs are fully cooked and tender.
Thicken the sauce (optional): If you prefer a sticky glaze, sprinkle xanthan gum evenly over the sauce and gently stir. Let it cook 10–15 more minutes. Start with 1/4 teaspoon; add more only if needed, as xanthan thickens quickly.
Finish and serve: Stir in a handful of sliced green onions.
Garnish with sesame seeds. Serve hot on its own, over cauliflower rice, or alongside sautéed greens.