Preheat your oven to 375°F and line a small baking dish with parchment paper for easy cleanup.
In a medium mixing bowl, combine the ground turkey, egg, finely diced yellow onion, minced garlic, almond flour, dried oregano, sea salt, and black pepper.
Gently mix the ingredients with your hands until just incorporated, taking care not to over-compress the meat to ensure a light texture.
Shape the turkey mixture into a uniform loaf and place it in the center of the prepared baking dish.
In a small bowl, whisk together the tomato paste, apple cider vinegar, and maple syrup until smooth to create the glaze.
Spread the tomato glaze evenly over the top and sides of the meatloaf using a spoon or pastry brush.
Bake for 30 to 35 minutes, or until the internal temperature reaches 165°F and the glaze has thickened.
While the meatloaf rests for 5 minutes, steam the green beans in a steamer basket over boiling water for 4 to 6 minutes until vibrant and crisp-tender.
Slice the meatloaf into thick rounds and serve immediately alongside the fresh green beans.