01 -
Place boneless skinless chicken breasts into the slow cooker vessel.
02 -
In a bowl, whisk together roasted garlic tomato sauce, chicken broth, chili powder, ancho chili powder, cumin, garlic powder, dried Mexican oregano, salt, and cornstarch slurry until fully combined.
03 -
Pour the prepared sauce mixture over the chicken in the slow cooker.
04 -
Cover and cook on high for 3 to 4 hours or low for 6 to 8 hours, until chicken is tender and fully cooked through.
05 -
Remove the cooked chicken breasts from the slow cooker and shred using two forks or meat claws.
06 -
Ladle sauce from the slow cooker over the shredded chicken, mixing as needed to keep moist.
07 -
Preheat oven to 425 degrees Fahrenheit.
08 -
Spread tortilla chips evenly on a large rimmed baking sheet.
09 -
Top chips with shredded cheese blend and distribute shredded chicken evenly.
10 -
Transfer baking sheet to oven and bake for 5 to 7 minutes, or until cheese is fully melted.
11 -
Remove nachos from oven and allow to cool briefly before adding toppings.
12 -
Garnish with black beans, grape tomatoes, sweet peppers, red onion, cilantro, and sour cream as desired just before serving.