Cook oil, ground beef, onion, green pepper, and garlic in a pan on medium heat until beef is browned. Drain fat and then add Worcestershire sauce and salt and pepper.
Add your cooked noodles to your pan with cooked beef and vegetables.
Drain water from diced tomato then add the diced tomatoes and tomato sauce to your pan. Allow to heat for 3-4 minutes.
Add cheddar cheese and mix well and allow to melt.