4-6 medium size potatoes
1 red onion, finely diced
1 tablespoon olive oil
1/2 cup cheddar cheese
1/2 cup mozzarella cheese
Salt and pepper to taste
Add some heat with chilli flakes or finely diced fresh chillies.
Meat lover? Add cooked, diced bacon bits.
Swop out the potatoes for sweet potatoes as a healthier option.