– 2½ pound [1.13 kg] Yukon gold potatoes – 1 large zucchini (or 2 medium zucchini) – ½ cup olive oil, divided – 2 medium white onions, thinly sliced or minced – 1 red bell pepper, minced – 2 teaspoons salt, divided – ½ teaspoon freshly-cracked black pepper, divided – 1 teaspoon of garlic powder – 4 large eggs – 1½ cups shredded cheddar cheese, divided