Crack eggs into a small bowl, and scramble with a whisk.
Place panko bread crumbs in a separate small bowl. Add salt, pepper, cumin and chile powder. Stir to combine.
Slice the avocados into long wedges. Dip each piece in the egg, carefully coating all sides of the avocado. Transfer to the panko bread crumb mixture, then carefully coat all sides of the avocado with bread crumbs.
In a small skillet, heat oil on high heat. Add 4-5 pieces of avocado to skillet. Reduce to medium heat. Fry for a little less than one minute on each side, until golden brown, then flip until all sides are fried. Placed fried avocado on paper towel to drain any grease.
Prepare the tortillas by spreading about 1/2 tbsp sour cream on each tortilla, then sprinkling 2 tbsp black beans. Place 4 fried pieces of avocado on top of the beans, then squeeze lime over it and and top with cilantro and your favorite salsa.