Do you think this can be frozen and baked later?

I'm actually not sure about the freezing before baking. But when it comes to freezing things, I like to think about how much time it's saving me. In this case, I don't think it would be doing all that much, especially because you can make this the day before and keep in in the refrigerator until baking. Other than measuring, you're browning sausage and chopping herbs. The sausage browning you can do ahead of time.