Vegetable Saute: Heat 1 tbsp. of oil (optional) in a large sauté pan to medium-high heat. Once oil is hot, add zucchini and cook for 2 minutes, stirring often. Add the tomato, and garlic, and let cook for 1 minute more. Add broccoli and ¼ cup of water and cover. Lower heat to medium and cook for 1-2 minutes or until broccoli starts to get tender. Add black beans and spinach. Stir. Season with salt and pepper and set aside.
Sauce: Boil water in a small pot. Place the dried guajillo and arbol chiles in the water and simmer for 5 min. Drain and place in the blender with the tomato, onion, and garlic. Blend until smooth. Strain. Pour finished sauce into a large pot and simmer for 5 min. Set aside.
Pour vegetable oil into a heavy-bottomed pot , enough to cover about 2 inches of the bottom. Heat to about 350F at medium-high heat. Fry the tortilla triangles in batches until golden brown. Place the fried tortillas on a paper towel lined tray and let cool.
Assemble: Toss the tortilla chips with the tomato sauce in the large pot where it was simmered. The tortillas will begin to soften, but we don’t want them completely soft, so plate the tortillas and sauce immediately. Top with ½ cup of the veggie mixture, chopped cilantro, avocado slices, drizzle with the crema, and sprinkle with vegan cotija.