- 1 tablespoon olive oil or canola
- 1 pound lean ground beef
- 1 large onion, chopped
- 1/2 cup ketchup
- 2 tablespoons brown sugar
- 1 teaspoon dry mustard
- 2 tablespoons vinegar
- 1 teaspoon chili powder
- 1 large can (about 28 ounces)
Heat the oil in a large skillet over medium heat. Add the ground beef and cook, stirring and breaking up, until no longer pink. Remove to a plate or bowl. Add the onions to the skillet and brown lightly. Add beef back to the skillet. Combine the ketchup, brown sugar, mustard, vinegar, and chili powder. Stir in to the beef mixture and gently stir in the beans.
Transfer the beef and beans to the prepared baking dish and bake for about 35 to 45 minutes, until hot and bubbly.