Sloppy Joe Grilled Cheese Sandwiches

Sloppy Joe Grilled Cheese Sandwiches 1 lb. ground beef 1/4 cup chopped onion 1 tablespoon yellow mustard (depending on your taste buds) 1/2 cup ketchup 1/4 cup brown sugar 1/2 tablespoon Worcestershire sauce 10-12 slices Texas toast bread 6 tablespoons butter softened 3 - 4 cups shredded cheese (or more if you need it) Brown ground beef with onion in skillet until fully cooked. Drain off any grease. Add mustard, ketchup and brown sugar and Worcestershire, simmer for 5 minutes. Spread butter on one side of each slice of bread. To assemble sandwiches, place one slice of bread, butter side down onto griddle or skillet. Sprinkle with cheddar cheese, a scoop of the beef mixture, and top with some more shredded cheese. Place a piece of bread on top, butter side up. Cook over medium heat until browned, carefully flip over and cook other side until browned.