Line the pie dish

• Press the spinach tortilla into the pie dish.
• Spread the cottage cheese over the bottom of the tortilla.

Add the vegetables

• Scatter the diced peppers and tomato over the cottage cheese.
• Add a little of the spinach.

Pour over the eggs

• Whisk the eggs in a bowl.
• Pour the beaten eggs over everything in the dish.
• Top with the remaining spinach.

Add the cheese

• Sprinkle the shredded mozzarella over the top.

Bake

• Bake at 180 °C (350 °F), checking after about 20 minutes.
• Bake until the eggs are set and the cheese is melted and golden, up to 25–30 minutes.

Serve

• Let the frittata cool slightly, then slice and serve.