Preheat a large, heavy bottomed pan over medium-high heat. Saute onion and pepper in olive oil and a pinch of salt, until peppers are softened, about 10 minutes. In the meantime prep all your other ingredients.
Add garlic and saute until fragrant, 30 seconds or so. Add mushrooms and cilantro and cook until the mushrooms have released a lot of moisture, about 5 minutes. Add tomatoes, corn, wine, salt, cumin and red pepper flakes. Turn heat up and cover the pan, stirring occasionally, for 5 to 7 minutes. The tomatoes should break down and become saucy (if corn was frozen it may take a bit longer.)
Now take the tortilla chips and crush them into fine crumbs with your hands. It’s ok if there are a few bigger pieces, but aim for crumbs. Add them to the stew and mix well. Since tortillas can be salty, wait until they’re added to taste for salt. Mix in the lime juice and hot sauce, then fold in the black beans and heat through. Now taste for salt and seasonings.