Brown the meat: Heat 1 tablespoon of olive oil in a large skillet over medium heat. Add ground beef (or turkey) and cook until browned, breaking it up as it cooks. If there's excess grease, drain lightly.
1 pound ground beef (or turkey), 1 tablespoon olive oil
Build the base flavor: Add chopped onion and bell pepper. Cook 5-7 minutes until softened, stirring on occasion. Then stir in the garlic and cook for 30 seconds to a minute, until fragrant.
½ medium yellow onion, 1 green bell pepper, 3 cloves garlic
Add cabbage and tomatoes: Pour in the undrained tomatoes, Worcestershire sauce, spices, salt, and pepper. Use a spoon or spatula to scrape any browned bits off the bottom of the pan and mix everything together, then add the cabbage. The skillet may be very full, but stir a little if you can and simmer uncovered for 10-15 minutes, stirring on occasion.
28 ounces canned diced fire-roasted tomatoes, 2 teaspoons Worcestershire sauce, 1 teaspoon smoked paprika, 1 teaspoon dried oregano, 1 teaspoon salt, ½ teaspoon black pepper, ¼ medium head of cabbage
Adjust the texture: Sprinkle in 1½ tablespoons of flour (or GF flour) and stir well. Simmer for another 3-4 minutes to thicken.
1½ tablespoon flour
Finish with cheese (optional): Sprinkle shredded cheddar over the top. Broil for 1-3 minutes on high to melt the cheese. Watch closely to prevent burning. Serve warm alone or over rice.
1 cup shredded cheddar cheese