Do you prefer to cook and then freeze fresh food, or freeze and then cook it?

I made this recipe last night and it made, easily, twice the amount we needed.

I was thinking that I should freeze some. But, then again, if I make it in the future, would it be better to freeze ½ uncooked and bake it with fresh potato chip topping?

Is it better blended, baked and frozen, or blended, frozen and then baked?

I have recently gotten in the habit of cooking twice as much meat entree as will be consumed, then freezing half for later. I’m thinking to expand to sides/veggies.