There are some restaurants in the Rinku Town Premium Outlets, very close to the hotels. There are also quite a few local style izakaya style (Japanese pub food) places quite close. A lot more people live there compared to a few years ago so restaurants are popping up. An amusement park is also being built.
There is a really big mall three or four stops away on the Nankai train, or a medium sized mall one stop away on the JR train. Big DIY store near there too.