Apples and Celery Pasta Salad with Light Caesar Dressing

low carb penne pasta (, uncooked)

to 2 Gala Apples (, washed and cut into cubes (leave the skins on))

celery stalks (, thinly sliced)

lemon juice of 1 whole lemon

fresh sweet baby lattuce blend ((you can also use about 2 to 3 romaine hearts, chopped))

- cup chopped walnuts

shredded white cheddar cheese

- cup NonFat Plain Yogurt ((I use Dannon))

dijon mustard

garlic clove

water ((add 1 more tablespoon for a thinner consistency))

grated parmesan cheese

salt and fresh ground pepper (, to taste)