Harriet and Marlo's Cowboy Stew

Heat a Dutch oven over medium-high heat. Add beef and onion; cook and stir until beef is browned and crumbly, 5 to 7 minutes. Add tomatoes, pork and beans, creamed corn, whole kernel corn, ketchup, cumin, chili powder, and garlic powder. Stir to combine. Bring to a boil, stirring occasionally.

Reduce heat to medium or medium-low. Cover and cook, stirring occasionally, until stew is hot and flavors meld, about 20 minutes.