Eat all u can or all u can eat???

In the PH, most of the restaurants will say, “eat all you can” when they have meals like these. However, here in the USA, restaurants will say, “all you can eat”. At first, I was like, “huh?” I was questioning what is the correct phrase then – the “eat all you can” or the “all you can eat”. Whatever, I do not care for the phrases, all I need is to feel my tummy! Yayyy!