Make the sauce in a 2-cup glass measuring cup (or a medium bowl). Stir together the tomato sauce, ketchup, brown sugar, Worcestershire sauce, mustard, garlic powder, onion powder, and freshly ground black pepper until well combined; set aside.
Set a large pot over medium-low heat. Add a few drops of extra-virgin olive oil, and saute the garlic for a minute or two until just fragrant and very light golden brown. Add ground beef, increase heat to medium/medium high, and cook until nicely browned with no pink remaining, breaking apart and stirring as the meat cooks. Drain the grease.
Pour the sauce over the browned meat, stir to combine, and simmer for at least 10 minutes until heated through, stirring occasionally.
Serve warm on hamburger buns or rolls with sliced pickles on top.