Add chicken, broth, cumin and chili powder to sauce pan and cover with lid. Let cook for 15 minutes. Remove chicken and shred, then set aside.
Prepare the Mexican Gravy per recipe below.
Preheat oven to 425degF.
Line baking sheets with parchment paper. Layer each tray with 2 cups chips, half of shredded chicken, half of pinto beans, half of Mexican gravy, half of cheese, half of red onions, half of cheese, and half of jalapenos. Place in oven and bake for 15 minutes.
Remove from oven and sprinkle with cilantro. Serve with a dollop of sour cream.