Mac and cheese bites are the ultimate kid-friendly comfort dish turned into fun, hand-held finger foods! As a dietitian mom, I love how versatile these bites are—they make a quick and easy snack or meal that fits any time of day.
Preheat the oven to 375°F (190°C). Grease a mini-muffin tin.
In a large bowl, stir together the leftover mac and cheese, egg, breadcrumbs, shredded cheese, and mustard powder. Season with salt and pepper, to taste.
Scoop the mixture evenly into the greased mini muffin tin, pressing down lightly.
Bake for 15 to 20 minutes, until golden and crispy on the edges.
Let the bites cool slightly before removing them from the tin. Enjoy them in your lunchbox!