Cook potatoes as directed on package. Add onions, cilantro, and green chilies.
Mix and heat margarine, fl our, salt, pepper, cumin, oregano, and milk. Cook until thick. Remove from heat and add sour cream. Place potatoes in a 9 by 13 pan. Top with sauce and mix lightly. Place bacon rounds on top and press down to form cups. Bake at 350 degrees for 40 minutes. Remove from heat and break 1 egg into each cup, season with salt and pepper. Bake at 350 degrees for 15-20 minutes. Garnish with cilantro sprigs, and tomatoes.