Add the ground turkey, the cooled vegetables, salt, garlic powder, pepper, 3 tablespoons ketchup, Worcestershire sauce, 1 tablespoon steak sauce, eggs, and breadcrumbs to a large bowl. Mix just until the ingredients are combined.
Lightly spray or brush the baking dish with oil.
Loosely shape the ground turkey into a ball while it’s still in the bowl.
Transfer the turkey mixture to the prepared baking dish and gently shape it into an oval loaf. Do not compress the mixture.
Preheat Oven to 350°F
Top with the bacon slices. Place them on top at a slight angle and tuck the excess under the loaf.
Drizzle 2–3 tablespoons of ketchup and 1–2 tablespoons of steak sauce over the top of the meatloaf. Use a pastry brush to combine the sauces and spread them in an even layer.
Place the meatloaf in the oven and bake for approximately 1½–2 hours. Start checking the internal temperature after 90 minutes.
Insert an instant-read thermometer into the center of the thickest part of the loaf. The meatloaf is done when the internal temperature reaches 165°F.
Let the meatloaf rest for 15–20 minutes before slicing.