1- Over medium heat, saute onion in olive oil until fragrant, add diced tomato, stir for another minutes then add the bell pepper. Season with some salt and let it cook for 3-4 minutes, turn off the heat.
2- In an oven dish add the beans can, then top with the veggies you just sauteed.
3- Crack the eggs on top, sprinkle with salt/pepper and some cumin powder.
4- Bake in a 350F oven until done, takes about 30 minutes for the eggs to be totally hard.