2Heat a large skillet over medium-high heat. Cook and stir ground beef, onion, and bell pepper in the hot skillet until beef is browned and crumbly, 5 to 7 minutes. Drain and discard grease.
3Stir tomatoes, tomato sauce, corn, olives, chili powder, garlic, cumin, salt, red pepper flakes, and black pepper into the skillet. Bring to a low boil, about 5 minutes. Reduce heat to medium-low and let simmer for 5 minutes. Stir in 1 cup Cheddar cheese and continue to simmer until melted, 3 to 5 minutes. Remove from heat and transfer mixture to the prepared baking dish.
