Pre-heat oven to 350 degrees.
Spray 9x11 baking dish with olive oil. Slice onion and green bell pepper into thin long slices and place in the baking dish.
Rinse and drain the potatoes, sprinkle with salt and pepper for taste and add them to the baking dish. Spray with a little olive oil, cover with tin foil and place in the oven to bake. Bake for 50-60 minutes.
Spray with a little olive oil, cover with tin foil and place in the oven to bake.
Bake for 50-60 minutes.