Add chicken to slow cooker
Whisk together tomato sauce, broth, seasonings and cornstarch blend until smooth
Pour over chicken in slow cooker
Cover and cook on high for 3-4 hours or low for 6-8
Remove and shred cooked chicken
Add sauce from slow cooker to chicken as needed
Preheat oven to 425 degrees
Spread out chips on large cookie sheet
Top with cheese and chicken
Bake until cheese is melted
Remove and let cool slightly
Top with remaining toppings as desired