In the bottom of a 4-quart slow cooker, add steak strips and top with all of the marinade ingredients. Cook on high for 2-½ hours or on low for 4 hours.
When done, remove steak only from the slow cooker. Set aside.
Preheat the oven to 375 degrees.
Pour the bag of tortilla chips over a 12x17 cookie sheet.
Top chips with the slow cooked steak.
Add black beans, cheese and jalapenos.
Cook for 8-10 minutes until the cheese is fully melted.
Top nachos with diced tomatoes, sour cream and cilantro.
Serve on cookie sheet, party platter or on dessert-sized plates.