2 (16 oz.) pkg. Velveeta mild Mexican cheese
1 can Rotel tomatoes
1/2 jar salsa
1 c. chopped onion
2 pkg. lg. macaroni shells
4 c. cooked chicken, deboned and cut in bite-size pieces

Cook macaroni. Melt cheese. Mix all ingredients with chicken and macaroni. Pour melted cheese over and mix well.