Ingredients

• Steak:
• 1 tablespoon vegetable oil
• 1 (1 1/2-pound) skirt steak or flap steak
• 1 teaspoon salt
• 1 teaspoon freshly ground black pepper
• 1/2 teaspoon ground dried chipotle pepper
• Beans:
• 2 tablespoons bacon fat
• 1 yellow onion, diced
• 1 teaspoon salt, divided
• 1/2 teaspoon dried oregano
• 2 (15 ounce) cans pinto beans, rinsed and drained
• 1 1/2 cups water or chicken broth, plus more as needed
• Nacho Toppings:
• 1 (14 ounce) bag corn tortilla chips
• 12 ounces shredded Cheddar cheese
• 12 ounces shredded Monterey Jack cheese
• 1 avocado - peeled, pitted and diced
• 1/2 cup chopped white onion, or to taste
• 2 ripe tomato, chopped, or more to taste
• 1 jalapeno pepper, seeded and minced
• 1/2 cup sour cream, for topping
• 1/2 cup chopped fresh cilantro

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Instructions

1. Season both sides of steak with salt and pepper. Heat oil in a skillet over medium-high heat. Cook steak, turning occasionally, to medium doneness, about 6 minutes per side. An instant-read thermometer inserted into the center should read 135 to 140 degrees F (60 degrees C). Transfer meat to a bowl to let it rest.
2. Pour a splash of water into the skillet; stir to scrape up browned bits and deglaze the pan. Pour this liquid over meat. Allow meat to cool completely.
3. When meat is completely cool slice thickly (about 1/2 inch) with the grain, then cut into thinner strips. Dice by cutting into pieces against the grain. Transfer chopped steak back to the bowl; toss with the pan drippings.
4. Melt bacon fat over medium heat in a pot. Add onions and a pinch of the salt; cook and stir until softened, 5 or 6 minutes. Stir in oregano. Add pinto beans and water. Bring back to a simmer and cook until onions are soft and sweet, about 5 minutes. Reduce heat to low.
5. Mash the beans with a potato masher to your desired consistency. Add additional liquid, if necessary, to achieve your preferred texture. Add the remaining salt to taste. Remove from heat.
6. Preheat oven to 450 degrees F (230 degrees C).
7. Place tortilla chips about 2 or 3 deep in a heat proof pan. (You may need more than one pan.) Top chips with spoonfuls of beans and a generous handful of steak pieces. Sprinkle with grated cheese.
8. Bake in preheated oven until cheese is melted and edges start to brown, about 10 minutes.
9. Scatter diced ripe avocado, diced onions, diced tomatoes, and diced jalapenos over the top. Drizzle nachos with sour cream and garnish with chopped cilantro.