Unroll the cinnamon roll dough and lay it flat on a lightly floured surface. Cut into small, bite-sized pieces, about 1-inch squares.

Whisk together eggs, milk, sugar, vanilla extract, cinnamon, and nutmeg in a mixing bowl until smooth.

Dip each piece of dough into the custard mixture, letting any excess drip off before transferring to the cooking surface.

Heat a frying pan or griddle over medium heat, add butter or oil, and cook dough pieces for 2-3 minutes on each side until golden brown.

Alternatively, preheat the oven to 375°F, line a baking sheet, arrange dough pieces, and bake for 10-12 minutes, flipping halfway.