Heat olive oil in a skillet over medium-high heat. Add onion, green pepper, garlic, and ground beef. Cook until beef is no longer pink, breaking up the meat as it cooks. Drain any excess grease.
Stir in dry mustard, chili powder, salt, and pepper.
Add rice and cook for 2 minutes.
Stir in tomato paste, diced tomatoes with juice, water, and Worcestershire sauce. Cover and
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