Goulash American Style My Way

Name: Goulash American Style My Way
Ingredients: 1 1⁄4 lbs ground beef (I got Amana Angus, can't say it's all that different but didn't have to drain grease off); 1⁄2 medium onion, cut up; 2 1⁄2 cups uncooked creamette medium pasta shells; 1 (6 ounce) can tomato paste; 1 (14 1/2 ounce) can diced tomatoes; 1⁄2 teaspoon Lawry's Seasoned Salt; 1⁄4 teaspoon schilling seasoned pepper; 1⁄2 teaspoon dried parsley; 1⁄2 teaspoon Worcestershire sauce; 1⁄2-3⁄4 cup grated cheddar cheese; tomato paste, can of water plus about 1/2 can more