Heat the oven to 350°. Add almond flour to a medium sized mixing bowl and then grate an onion over top. Mix the onion into the almond flour until fully combined.
Peel the garlic and either finely mince it or push it through a garlic press, then add it to the almond flour with the eggs, 1/4 cup no sugar added ketchup, worcestershire, dijon, eggs, parsley, sea salt and pepper. Mix and then knead in the ground beef until well combined.
Shape the meat into a log, place inside a loaf pan and then smooth the log so that it is even and without cracks. Mix the glaze ingredients together and brush half of the mixture onto the meatloaf. Cover the meatloaf with tin foil and bake for 40 minutes.
Remove the tin foil and discard any fat that may have surfaced during baking. Brush on the second half of the glaze and then bake, uncovered, for 10-15 minutes, or until the internal temperature reaches 165°. Cut the keto meatloaf into 8 slices and serve hot.