Preheat your oven to 375°F and line a small loaf pan with parchment paper.
Finely dice the yellow onion and mince the garlic clove.
In a large mixing bowl, combine the ground beef, ground pork, egg, and almond flour.
Add the diced onion, minced garlic, coconut aminos, sea salt, black pepper, and dried oregano to the bowl.
Mix the ingredients by hand until just incorporated, being careful not to over-mix which can make the meatloaf tough.
Transfer the meat mixture to the prepared loaf pan and press down gently to form an even layer.
In a small bowl, whisk together the tomato paste and balsamic vinegar until smooth.
Brush the tomato-balsamic glaze evenly over the top of the meatloaf.
Bake for 35 to 40 minutes, or until the internal temperature reaches 160°F.
Remove from the oven and allow the meatloaf to rest for 5 minutes before slicing and serving.