Moussaka Meat Sauce

2 tablespoons extra-virgin olive oil
1/2 medium yellow onion, chopped
3 cloves garlic, minced
1 pound ground beef
1/2 teaspoon dried oregano
1/8 teaspoon ground allspice
Pinch of ground cloves
1 cinnamon stick, broken in half
1/2 teaspoon kosher salt, plus to taste
Freshly ground pepper
1 1/2 cups whole, peeled, canned tomatoes (with purée), roughly chopped
1 bay leaf

Heat the olive oil in a large skillet over medium-high heat. Add the onion and cook, stirring with a wooden spoon, until lightly browned, about 4 minutes. Add the garlic and cook, stirring frequently, until fragrant, about 1 minute. Add the beef, oregano, allspice, cloves, and cinnamon. Break the meat up into small pieces and season with the 1/2 teaspoon salt and pepper to taste. Cook, stirring occasionally, for about 2 minutes. Lower the heat to medium and cook, stirring, until just cooked but still slightly pink inside, about 1 minute more. Add the tomato and bay leaf and bring to a simmer. Cover, and cook until the sauce is thickened and fragrant, about 20 minutes.

From: Food Network Kitchens [archive.org]