Preheat the oven to 400 degrees F.
In a large skillet over medium-heat, swirl 1 tbs oil to coat pan. When hot, add the ground beef and cook through, breaking up as it browns. Transfer to a bowl and set aside.
Reduce the heat to medium and add the remaining oil. Add the onion and garlic, cooking until brown and softened, about 5 minutes. Add the tomatoes, and cook until the juices have thickened, 8- 10 minutes. Stir in the Worcestershire, chile, garlic, onion, sugar and cumin. Allow to simmer over low for another 10 minutes.
Spread the filling evenly into a 13x9 baking dish and bake for 30 to 40 minutes, getting a nice crust on the top.
Let cool 5 minutes before serving up taco bar style.