The fast-food chain has just started testing a breakfast version of the kids’ meal. A spokesperson for the company told Fortune that the test began on Sept. 26 and is taking place at 73 locations in Tulsa, Okla., the same market where McDonald’s tested its “All Day Breakfast: Bigger Menu.”

The new kids meal will consist of either two McGriddle cakes (240 calories) or an Egg McMuffin sans Canadian bacon and butter (260 calories). According to USA Today, it also comes with a choice of two sides. Apples, yogurt, and fries will be available everywhere, though the last will only be an option after traditional breakfast hours. Hash browns will also be offered at certain locations.

If the test goes well, the breakfast Happy Meal could roll out nationally sometime in 2017. If that happens, it would be the first time since 1983 that McDonald’s has offered a new Happy Meal entree.

This is the company’s latest modification to its all-day breakfast, which officially launched last October and has been CEO Steve Easterbrook’s most notable turnaround move since he took the helm in March 2015. What started out as a limited menu has recently expanded to incorporate all the McDonald’s breakfast favorites. The new Happy Meal would join the all-day menu.