Potato Zucchini and Onion Bake with Mozzarella

Ingredients

• 1 ½ pounds (675 g) potatoes
• 1 medium (200 g)zucchini
• 2 tablespoons (30 ml) olive oil
• 2 (110 g) white onions, thinly sliced
• 1/2 teaspoon (2.5 g) salt, divided
• 1/2 teaspoon (1 g) black pepper, divided
• 3 (60 g) whole eggs
• 1 medium (120 g) red bell pepper, diced
• 1/2 cup (60 g) shredded Mozzarella cheese