Heat the mashed potatoes according to manufacturer instructions.
Heat a large skillet over medium-high heat and spray with cooking spray. Portion the hot mashed potatoes into 4 patties. Press lightly to flatten. Cook until browned and crispy, about 5 minutes. Flip and repeat on the other side for another 5 minutes.
While the potato pancakes are cooking, heat black beans until warm, set aside.
In another skillet, fry eggs to your liking.
Assembly:
Place the potato pancake on a plate and top with black beans, avocado slices, an egg and drizzle with your favorite salsa. Serve immediately.