1 large onion, chopped
1 1/2 pounds ground beef
1 teaspoon garlic powder
1/2 teaspoon red pepper flakes
1/2 teaspoon Italian seasoning
salt and pepper to taste
1 small head cabbage, chopped
2 (14.5 ounce) cans diced tomatoes
1 (14.5 ounce) can tomato sauce
Heat olive oil in a large heavy pot or a 6-quart Dutch oven over medium heat. Cook and stir onion in hot oil until translucent, about 5 minutes. Break ground beef into small chunks and add to the pot; cook and stir, continuing to break the beef into smaller pieces, until the beef is completely browned, 5 to 7 minutes. Season beef mixture with garlic powder, red pepper flakes, Italian seasoning, and a dash of salt. Stir cabbage, diced tomatoes, and tomato sauce with the beef mixture; bring to a boil, reduce heat to low, and cook mixture at a simmer until cabbage is fork-tender, about 25 minutes. Season with salt and pepper.