These pizza crusts are in fact pieces of cooked pizza dough, which are often, at least partially, "flavored", meaning that there is a little bit of cheese, herbs, tomato sauce, toppings or even all of these at the same time.
So they have a lot of taste, which makes it a shame to throw them away!
Well, at the same time if we don't throw them away, we tend to put them aside, and a few days in the fridge can easily dry them out.
So to reuse them, it is better to cut them in small pieces first.
Then put them in a frying pan in a base of olive oil (for example)...
... and grill them to your taste.
You can then use them a bit like simple croutons, but they will be much better!
Like in this simple
raw beet salad, or to replace bread in a
panzanella.
To sum up: Don't throw away pizza croutons, but rather grill them and use them as delicious croutons.