Preheat the oven to 375 degrees. Spray a 9x5 loaf pan with non-stick spray.
Combine the topping ingredients in a small bowl. Mix well and set aside.
In a large bowl, combine vegan beef, cornbread crumbs, flax egg, yellow onion, dijon mustard, ketchup, basil, garlic powder, salt, oregano and pepper. Mix together until it is evenly combined.
Transfer the meat mixture to the loaf pan. Spread into an even layer.
Spread the topping over the meat mixture.
Bake in the preheated oven for 30 minutes, then cover with aluminum foil and bake another 20 minutes or until the internal temperature reaches 165 degrees.
Remove from the oven and let sit for 5 minutes before slicing.