Slice 2 onions thinly and sauté them in a pan with cooking oil, adding a pinch of salt and pepper.

Crack 1 egg into a pan and spread it out to match the length of a tortilla. Cook on medium heat until set.

Place a tortilla on top of the cooked egg, press lightly, and flip the pan to transfer the tortilla.

Add the sautéed onions on top of the egg-covered tortilla.

Place a slice of cheddar cheese and half a can of spam (or sandwich ham) on top.

Sprinkle a bit of mozzarella cheese to help bind the ingredients together.

Fold both sides of the tortilla over the filling and flip to cook until golden brown.