1 lb. lean ground beef
1 lb. processed American cheese, cut in sm. pieces
1 (8-10 oz.) can green chilies & tomatoes
2 tsp. Worcestershire sauce
1/2 tsp. chili powder

Brown beef and drain excess grease. Put beef and all remaining ingredients in crockpot or saucepan. Stir well; cook until cheese is melted. For crockpot, cover and cook on high for 1 hour, until cheese is melted. Serve immediately or turn to low for serving up to 6 hours later. Serve with tortilla or corn chips. For thicker dip, stir in a paste of 2 tablespoons flour and 3 tablespoons water.