Preheat the oven to 400°F (200°C). Gather all your ingredients.

In a large mixing bowl, combine the chilled mashed potatoes, grated cheddar cheese, and eggs. Stir until smooth.

Fold in any optional vegetables like spinach or broccoli.

Roll small portions of the mixture into bite-sized balls.

Gently roll each ball in the bread crumbs to coat.

Line a baking sheet with parchment paper and arrange the puffs with space in between.

Bake for 20-25 minutes or until golden brown and crispy.

Let cool briefly, then serve warm with your favorite dipping sauces.