I am a family of 6 and we always eat TS meals, while looking for ways to save. One big suggestion is that if you want dinner.... make it a late lunch. Some of the restaurants have slightly cheaper pricing at the 3:20 seating in comparison to the 4:00! Not all though, so check out the pricing!
Next would be something that you already mentioned, sharing meals! My 2 girls share 1 kids meal, and my teenager, husband, and I share 2 adult meals. Then we just order an extra side. My 6th is 17 months and he was just picking small amounts from everyone!
Our favorite TS are Kona Café for breakfast, BOG, Via Napoli, and SciFi Diner.
Of course by doing more QS you can all order kids meals too!!