Spanish Potato Omelet

Spanish Potato Omelet is an moderately easy dinner. Made with 1/4 c. olive oil, 1/4 c. vegetable oil, 1 lb. thin skinned red or white potatoes, cut into 1/8-inch slices, 1/2 tsp. salt, divided and 1 small onion, cut in half lengthwise, thinly sliced crosswise, this recipe delivers authentic, satisfying flavors. An easy weeknight meal that comes together quickly.