For salsa: Pour oil into a skillet and place over medium-high heat. Add onion and garlic and sauté for 2 to 3 minutes. Add tomatoes and minced chipotles and continue to sauté for an additional 2 to 3 minutes. Season with salt and pepper and remove from heat. Stir in the cilantro and lime juice and set aside to cool.
To assemble: Place corn tortillas onto a platter top with a little bit of salsa. Top salsa with black beans and some more salsa. Top each tortilla with a fried egg, followed by more salsa. Season with salt and pepper. Finish each huevos rancheros with crumbled queso fresco, thinly sliced iceberg, cilantro, hot sauce, and lime wedges. Serve immediately.
