There's no much to see in Torrijas itself: the whole town can be covered in 30 minutes.
The best thing to do on a fine day is walking in the surrounding countryside.
You can go mushroom-picking ("rovellones" are delicious and grow everywhere), but of course, a little knowledge is required in order to pick the right ones and not getting intoxicated!
Not a restaurant, but the traditional shepherd's dish in many parts of the country: sardines with "migas". This is simple, rustic food.
That weekend, as it was the local festivals, they were giving away free servings in the town square.
This traditional activity is difficult to translate, but it takes place in many festivals in Spain.
Maybe you are familiar with "encierros", which consist in loose bulls running behind crazy locals and more crazy tourists through narrow streets.
Well, this one also employs bulls, but only one, and consists in putting wooden balls with kerosene on its horns, setting them on fire, and letting the wild beast go. But it's much more difficult (and dangereous) than it sounds!
See the photos in the travelogue