The phrase "roasted veggies" refers to vegetables that have been cooked by exposing them to high heat in an oven or on a stovetop. The process involves placing sliced or chopped vegetables, such as carrots, potatoes, bell peppers, and onions, in a single layer in a baking dish or pan, then cooking them until they are tender and slightly browned on the edges. Roasting brings out the natural flavors of the veggies while also making them crispy on the outside. This method is popular because it's simple to prepare and results in delicious, healthy side dishes that can be enjoyed alone or as part of a meal.