Preparation Put oven rack in middle position and preheat oven to 400°F. Lightly oil a 9 1/2-inch (6-cup capacity) pie plate. Cook onion in 2 tablespoons oil in a deep 10-inch heavy skillet over moderate heat, stirring occasionally, until edges are golden, 3 to 4 minutes. Add garlic and cook, stirring, 1 minute. Add beef and cook, breaking up large lumps, until no longer pink, 4 to 5 minutes. Add sugar, spices, and 1 teaspoon salt and cook, stirring, 1 minute. Add tomatoes with juice and briskly simmer, stirring occasionally, until liquid is reduced to about 1/4 cup, 8 to 10 minutes. While beef simmers, whisk together cornmeal, flour, baking powder, and remaining 1/4 teaspoon salt in a medium bowl. Whisk together milk, egg, and remaining 2 tablespoons oil in a small bowl, then stir into cornmeal mixture until just combined. Fold in 1/2 cup cheese. Spoon cooked spiced beef into pie plate with a slotted spoon, reserving juices in skillet. Skim off and discard fat from juices if desired, then pour juices over beef in pie plate. Spoon 4 mounds of corn bread batter over beef, then sprinkle remaining 2 tablespoons cheese over batter. Bake until a wooden pick or skewer inserted into center of corn bread comes out clean, 15 to 25 minutes. Serve cobbler warm.
Preparation Put oven rack in middle position and preheat oven to 400°F. Lightly oil a 9 1/2-inch (6-cup capacity) pie plate. Cook onion in 2 tablespoons oil in a deep 10-inch heavy skillet over moderate heat, stirring occasionally, until edges are golden, 3 to 4 minutes. Add garlic and cook, stirring, 1 minute. Add beef and cook, breaking up large lumps, until no longer pink, 4 to 5 minutes. Add sugar, spices, and 1 teaspoon salt and cook, stirring, 1 minute. Add tomatoes with juice and briskly simmer, stirring occasionally, until liquid is reduced to about 1/4 cup, 8 to 10 minutes. While beef simmers, whisk together cornmeal, flour, baking powder, and remaining 1/4 teaspoon salt in a medium bowl. Whisk together milk, egg, and remaining 2 tablespoons oil in a small bowl, then stir into cornmeal mixture until just combined. Fold in 1/2 cup cheese. Spoon cooked spiced beef into pie plate with a slotted spoon, reserving juices in skillet. Skim off and discard fat from juices if desired, then pour juices over beef in pie plate. Spoon 4 mounds of corn bread batter over beef, then sprinkle remaining 2 tablespoons cheese over batter. Bake until a wooden pick or skewer inserted into center of corn bread comes out clean, 15 to 25 minutes. Serve cobbler warm.