I know KIX/Osaka pretty well and you are basically out in the boonies. My guess is English won't go too far but in the past few years most restaurants in Japan seem to have started offering something in English.
A train ride to Namba/Umeda (the two main drags so to speak) are a 40+ min train ride away from Izumisano.
The Ferris wheel mentioned earlier is called Rinku town. Actually haven't been there but it's worth a try. As a last resort, the restaurants in the main airport terminal are pretty good, but they are closed by 9 or 10pm. A crew badge will likely get you a discount.