Preheat the oven to 350°F.
In a large bowl, mix together the ground beef, ¼ cup of ketchup, breadcrumbs, bouillon base, onion powder, celery salt, paprika, black pepper, and garlic. Divide the mixture into 4 portions then form each portion into a loaf shape.
Into a large skillet over medium-high heat, add the oil. When the oil is hot, place each vegan meatloaf into the pan. Cook for 8 minutes, turning to brown on each side.
Arrange the meatloaves in a prepared 8 ½ x 11-inch baking dish. Bake for 20 minutes, or until internal temperature reaches 160°F.
Brush the meatloaves with the remaining ¼ cup of ketchup and return them to the oven for an additional 5 minutes. Allow to stand for 10 minutes, then slice and serve.