Preheat oven to 350 degrees
In a cast iron skillet, heat up oil on medium-high heat. Pan fry potatoes until slightly tender but still have some resistance.
Add onions and other vegetables you decide to use and cook until tender.
Add beaten eggs to the pan and allow to cook for 2-3 minutes.
Place skillet in the oven and cook for about 15min or until eggs are cooked through. You can use a fork to see if eggs are fully cooked. Turn on broiler and broil eggs on high until a nice crust has formed.
Cut into eight slices, and enjoy with friends or meal prep for the week.