The changes comes after testing round-the-clock breakfast in several markets.
White Castle's breakfast menu includes French Toast Sticks, Hashbrown Nibblers, Oatmeal, Breakfast Sliders, and Toast Sandwiches.
The chain is also permanently bringing back Belgian Waffles, including Waffle Breakfast Sliders and Sausage & Gravy Waffle Sliders. Strawberries & Cream Waffles are back as well but only for a limited-time. Belgian waffles were first introduced to the menu last year as a limited-time offering.